[CODE4LIB] Job: Technical Lead at Talis Group
**Job Description** Talis is a fast growing yet small and agile business, emerging from the start- up phase, with big plans for game-changing software in Education. We are funded by an established technology and services group and provided with the support and space to determine our own destiny. Launched three years ago, our education enterprise application platform, Talis Aspire, has now been adopted by 50 Universities in the UK and Australia. We are expanding, both into new markets and with new modules. With successful validation of our approach, our plans for the next phase include building out further modules in both the enterprise and direct to end user spaces. We have a need for an experienced technical lead who will work exclusively on the enterprise side of our business, on our web and mobile applications. **Skills Requirements** * Your job is to work in partnership with the product manager and the development team to ensure new features - and new products - delight customers, ship on time, and are of a high quality. * This role is a long term commitment to lead, be responsible and accountable for the technical aspects of our enterprise products. As such there is significant scope for career growth as we expand our reach and product set. * You'll have prior experience as a technical lead of a significant product or service. * It's great to hear about your experience on green field development, but you'll also need to demonstrate experience working on products that have been in the market for some time and have gone through multiple iterations. You'll enjoy scaling and building for hundreds of thousands of users just as much as shipping a shiny new product to hundreds. * You'll be courageous in your approach to technology and not be afraid to undertake major changes if that is what is required to get the job done. * You'll share our appetite for unit testing, automated testing and continuous integration. You'll likely have opinions on how to improve our approach to all three. * Our applications are in it for the long haul. Over their active life they'll be worked on by many people from many backgrounds, and you'll accept they won't always see things as you see them. Your approach will reflect that - your code will be self-documenting, exhibit sensible and recognisable patterns, and your designs will be capable of being easily refactored as we scale, grow and further develop our products. Crucially, you'll mentor others to do the same. * An eye for architecting for today's actual functional requirements and scale, with an eye on how to evolve things only when tomorrow's requirements come to the fore. As a result, you'll be expert at refactoring when tomorrow comes. We've mentioned refactoring twice now. * It's important you are not allergic to users. You will occasionally interact directly with them whilst supporting the product manager, and you should enjoy that. * We don't have to do all the work. You'll have a good feel for the important things to do yourself, and what work we should be asking partners, associates or other 3rd party experts to do on our behalf. * Everyone is encouraged to ask a lot of questions here, so you should be ready for people to challenge and feedback on your approach and ideas, and vice versa. * We are a fun, small, smart and close knit team. Every individual is expected to make a real and tangible difference to our success. We're open and transparent, and those that share in our values thrive and stay with us for many years. * We are a start-up now in the scale up phase, so those looking for a more corporate environment need not apply. **About our stack** * Our products were originally built exclusively in PHP, but increasingly we are moving to a heterogeneous service oriented architecture with services implemented with node.js, ruby and other technologies. The emphasis is on the right tool for the job, rather than worship at any particular technology altar. * We make extensive use of NoSQL technology. Our core data platform is currently MongoDB. * We like to crunch numbers, log files and whatever else we can get our hands on in Hadoop. * We use a hybrid of cloud and co-located services. * We track, time and monitor everything that moves. Currently we're using a combination of Sensu, PagerDuty, Dashing, NewRelic, Graphite. * It is only desirable, not essential, that you have experience in some or all of the technologies we use today. They'll not be the exact same set we use in 18 months time - perhaps you'll introduce some better ones? The important thing is that you can demonstrate you are a quick learner, use and select technologies on their own merit, and can apply sound theory in your decisions and code. **About Talis Group Limited** This role reports to the CTO, but you'll be part of, and accountable to, a wider management group which includes sales,
[CODE4LIB] ANN: New ZBW Labs web site – library projects as Linked Data
ZBW Leibniz Information Centre for Economics has launched a new Labs area (http://zbw.eu/labs). It offers a semantically enriched directory of ZBW Labs projects, ranging from small showcases to full-fledged applications in beta state, and a blog about latest developments. The new web site is based on Drupal 7 (which supports RDFa in core). The projects are marked up with Dublin Core, DOAP (Description of a Project), and schema.org vocabularies. You are invited to have a look - please feel free to comment. Cheers, Joachim -- Joachim Neubert Innovative Information Systems and Publication Technologies ZBW – German National Library of Economics Leibniz Information Centre for Economics Neuer Jungfernstieg 21 20354 Hamburg
[CODE4LIB] VuFind 2.0RC1 Released
Apologies for cross-posting... FOR IMMEDIATE RELEASE VuFind 2.0RC1 Released Villanova, Pennsylvania - April 29, 2013 - The first release candidate of version 2.0 of the VuFind Open Source discovery software has just been released. This release provides a preview of the functionality and architecture that will be seen in the full 2.0 release, due later this summer. The new release includes several significant enhancements: - Significant security improvements, including more secure password storage and protection against spammer abuse. - A MultiBackend driver which allows VuFind to interact with multiple integrated library systems at once. - A new and flexible search system with more modular, reusable code. - 2.0 versions of all new features introduced in the 1.4 release, including support for hierarchical records and the Clickatell SMS service. Additionally, several bug fixes and minor improvements have been incorporated. Questions about the new release or VuFind in general can be directed to Demian Katz, the lead developer of the project at Villanova University. Contact: Demian Katz demian.katz@... Villanova University Falvey Memorial Library 800 Lancaster Avenue Villanova, PA 19085 ###
[CODE4LIB] tiff2pdf, then back to pdf?
Hi All, I have a need to batch convert many TIFF images to PDF. I'd then like to be able to discard the TIFF images, but I can only do that if I can create the original TIFF again from the PDF. Is this possible? If so, using what tools and how? tiff2pdf seems like a possible solution, but I can't find a corresponding pdf2tif program that reverses the process. Any ideas? Edward
Re: [CODE4LIB] tiff2pdf, then back to pdf?
If you can stand an extrastep, Ed, there are tools to convert PDF to jpg images, and from there it shouldn't be too hard to get TIFF output. Do a search for convert PDF to image to get started. There are tools that are not online only, which I'm pretty sure is what you're after. Roy Zimmer Western Michigan University On 4/26/2013 4:08 PM, Edward M. Corrado wrote: Hi All, I have a need to batch convert many TIFF images to PDF. I'd then like to be able to discard the TIFF images, but I can only do that if I can create the original TIFF again from the PDF. Is this possible? If so, using what tools and how? tiff2pdf seems like a possible solution, but I can't find a corresponding pdf2tif program that reverses the process. Any ideas? Edward
Re: [CODE4LIB] tiff2pdf, then back to pdf?
Image Magick can do it, you need Ghost Script installed though. I'Ve done this with multi layer TIFs and multi page PDFs. -mike ___ Michael Friscia Manager, Digital Library Programming Services Yale University Library (203) 432-1856 On 4/26/13 4:08 PM, Edward M. Corrado ecorr...@ecorrado.us wrote: Hi All, I have a need to batch convert many TIFF images to PDF. I'd then like to be able to discard the TIFF images, but I can only do that if I can create the original TIFF again from the PDF. Is this possible? If so, using what tools and how? tiff2pdf seems like a possible solution, but I can't find a corresponding pdf2tif program that reverses the process. Any ideas? Edward
Re: [CODE4LIB] tiff2pdf, then back to pdf?
I'm by no means an expert in the math behind image format conversions... but: When converting to TIFF-to-JPG, TIFF is uncompressed formatting and JPG is compressed format. When back converting, wouldn't the original quality of TIFF would be lost, converted only to the quality of the last JPG (with degradation on each time this process occurs)? James Gilbert, BS, MLIS Systems Librarian Whitehall Township Public Library 3700 Mechanicsville Road Whitehall, PA 18052 610-432-4339 ext: 203 -Original Message- From: Code for Libraries [mailto:CODE4LIB@LISTSERV.ND.EDU] On Behalf Of Roy Sent: Friday, April 26, 2013 4:15 PM To: CODE4LIB@LISTSERV.ND.EDU Subject: Re: [CODE4LIB] tiff2pdf, then back to pdf? If you can stand an extrastep, Ed, there are tools to convert PDF to jpg images, and from there it shouldn't be too hard to get TIFF output. Do a search for convert PDF to image to get started. There are tools that are not online only, which I'm pretty sure is what you're after. Roy Zimmer Western Michigan University On 4/26/2013 4:08 PM, Edward M. Corrado wrote: Hi All, I have a need to batch convert many TIFF images to PDF. I'd then like to be able to discard the TIFF images, but I can only do that if I can create the original TIFF again from the PDF. Is this possible? If so, using what tools and how? tiff2pdf seems like a possible solution, but I can't find a corresponding pdf2tif program that reverses the process. Any ideas? Edward
Re: [CODE4LIB] tiff2pdf, then back to pdf?
Imagemagick's convert will do it both ways. convert a.tiff b.pdf convert b.pdf a.tiff If the pdf is more than one page, the tiff will be a multipage tiff. Aaron -- Aaron Addison Unix Administrator W. E. B. Du Bois Library UMass Amherst 413 577 2104 On Fri, 2013-04-26 at 16:08 -0400, Edward M. Corrado wrote: Hi All, I have a need to batch convert many TIFF images to PDF. I'd then like to be able to discard the TIFF images, but I can only do that if I can create the original TIFF again from the PDF. Is this possible? If so, using what tools and how? tiff2pdf seems like a possible solution, but I can't find a corresponding pdf2tif program that reverses the process. Any ideas? Edward
Re: [CODE4LIB] tiff2pdf, then back to pdf?
Yes, converting from JPG to TIFF would have the quality of a JPG and (I believe) the file size of a TIFF. On 4/26/13 4:19 PM, James Gilbert wrote: I'm by no means an expert in the math behind image format conversions... but: When converting to TIFF-to-JPG, TIFF is uncompressed formatting and JPG is compressed format. When back converting, wouldn't the original quality of TIFF would be lost, converted only to the quality of the last JPG (with degradation on each time this process occurs)? James Gilbert, BS, MLIS Systems Librarian Whitehall Township Public Library 3700 Mechanicsville Road Whitehall, PA 18052 610-432-4339 ext: 203 -Original Message- From: Code for Libraries [mailto:CODE4LIB@LISTSERV.ND.EDU] On Behalf Of Roy Sent: Friday, April 26, 2013 4:15 PM To: CODE4LIB@LISTSERV.ND.EDU Subject: Re: [CODE4LIB] tiff2pdf, then back to pdf? If you can stand an extrastep, Ed, there are tools to convert PDF to jpg images, and from there it shouldn't be too hard to get TIFF output. Do a search for convert PDF to image to get started. There are tools that are not online only, which I'm pretty sure is what you're after. Roy Zimmer Western Michigan University On 4/26/2013 4:08 PM, Edward M. Corrado wrote: Hi All, I have a need to batch convert many TIFF images to PDF. I'd then like to be able to discard the TIFF images, but I can only do that if I can create the original TIFF again from the PDF. Is this possible? If so, using what tools and how? tiff2pdf seems like a possible solution, but I can't find a corresponding pdf2tif program that reverses the process. Any ideas? Edward -- Steve Cherry Electronic Services Librarian The Catholic University of America 202-319-6433
Re: [CODE4LIB] tiff2pdf, then back to pdf?
Hi, you'll notice from the language you use to describe your use case, that you use the word convert to describe what you're doing to the original TIFF images. Once you're done producing a derivative from those TIFFs, the only way back to the original TIFFs is to go back to the actual originals. The TIFF images are not stored in the PDF. Only way to go back to the originals is to preserve them. -- HARDY POTTINGER pottinge...@umsystem.edu University of Missouri Library Systems http://lso.umsystem.edu/~pottingerhj/ https://MOspace.umsystem.edu/ Do you love it? Do you hate it? There it is, the way you made it. --Frank Zappa On 4/26/13 3:08 PM, Edward M. Corrado ecorr...@ecorrado.us wrote: Hi All, I have a need to batch convert many TIFF images to PDF. I'd then like to be able to discard the TIFF images, but I can only do that if I can create the original TIFF again from the PDF. Is this possible? If so, using what tools and how? tiff2pdf seems like a possible solution, but I can't find a corresponding pdf2tif program that reverses the process. Any ideas? Edward
Re: [CODE4LIB] tiff2pdf, then back to pdf?
This works sometimes. Well, it does give me a new tiff file from the pdf all of the time, but it is not always anywhere near the same size as the original tiff. My guess is that maybe there is a flag or somethign that woulf help. Here is what I get with one fil: ecorrado@ecorrado:~/Desktop/test$ convert -compress none A001a.tif A001a.pdf ecorrado@ecorrado:~/Desktop/test$ convert -compress none A001a.pdf A001b.tif ecorrado@ecorrado:~/Desktop/test$ ls -al total 361056 drwxrwxr-x 2 ecorrado ecorrado 4096 Apr 26 17:07 . drwxr-xr-x 7 ecorrado ecorrado20480 Apr 26 16:54 .. -rw-rw-r-- 1 ecorrado ecorrado 38497046 Apr 26 17:07 A001a.pdf -rw-r--r-- 1 ecorrado ecorrado 38178650 Apr 26 17:07 A001a.tif -rw-rw-r-- 1 ecorrado ecorrado 5871196 Apr 26 17:07 A001b.tif In this case, the two tif files should be the same size. They are not even close. Maybe there is a flag to convert (besides compress) that I can use. FWIW: I tried three files/ 2 are like this. The other one, the resulting tiff is the same size as the original. Edward On Fri, Apr 26, 2013 at 4:25 PM, Aaron Addison addi...@library.umass.eduwrote: Imagemagick's convert will do it both ways. convert a.tiff b.pdf convert b.pdf a.tiff If the pdf is more than one page, the tiff will be a multipage tiff. Aaron -- Aaron Addison Unix Administrator W. E. B. Du Bois Library UMass Amherst 413 577 2104 On Fri, 2013-04-26 at 16:08 -0400, Edward M. Corrado wrote: Hi All, I have a need to batch convert many TIFF images to PDF. I'd then like to be able to discard the TIFF images, but I can only do that if I can create the original TIFF again from the PDF. Is this possible? If so, using what tools and how? tiff2pdf seems like a possible solution, but I can't find a corresponding pdf2tif program that reverses the process. Any ideas? Edward
Re: [CODE4LIB] tiff2pdf, then back to pdf?
Actually, I'm mistaken. It didn't ever work. :-(. I do get a tiff, but not the original. I looked at the wrong files. On Fri, Apr 26, 2013 at 5:11 PM, Edward M. Corrado ecorr...@ecorrado.uswrote: This works sometimes. Well, it does give me a new tiff file from the pdf all of the time, but it is not always anywhere near the same size as the original tiff. My guess is that maybe there is a flag or somethign that woulf help. Here is what I get with one fil: ecorrado@ecorrado:~/Desktop/test$ convert -compress none A001a.tif A001a.pdf ecorrado@ecorrado:~/Desktop/test$ convert -compress none A001a.pdf A001b.tif ecorrado@ecorrado:~/Desktop/test$ ls -al total 361056 drwxrwxr-x 2 ecorrado ecorrado 4096 Apr 26 17:07 . drwxr-xr-x 7 ecorrado ecorrado20480 Apr 26 16:54 .. -rw-rw-r-- 1 ecorrado ecorrado 38497046 Apr 26 17:07 A001a.pdf -rw-r--r-- 1 ecorrado ecorrado 38178650 Apr 26 17:07 A001a.tif -rw-rw-r-- 1 ecorrado ecorrado 5871196 Apr 26 17:07 A001b.tif In this case, the two tif files should be the same size. They are not even close. Maybe there is a flag to convert (besides compress) that I can use. FWIW: I tried three files/ 2 are like this. The other one, the resulting tiff is the same size as the original. Edward On Fri, Apr 26, 2013 at 4:25 PM, Aaron Addison addi...@library.umass.eduwrote: Imagemagick's convert will do it both ways. convert a.tiff b.pdf convert b.pdf a.tiff If the pdf is more than one page, the tiff will be a multipage tiff. Aaron -- Aaron Addison Unix Administrator W. E. B. Du Bois Library UMass Amherst 413 577 2104 On Fri, 2013-04-26 at 16:08 -0400, Edward M. Corrado wrote: Hi All, I have a need to batch convert many TIFF images to PDF. I'd then like to be able to discard the TIFF images, but I can only do that if I can create the original TIFF again from the PDF. Is this possible? If so, using what tools and how? tiff2pdf seems like a possible solution, but I can't find a corresponding pdf2tif program that reverses the process. Any ideas? Edward
Re: [CODE4LIB] tiff2pdf, then back to pdf?
What's your use case in this scenario? Do you want to provide access to the PDFs over the web or are you using them as your archival format? You probably don't want to use PDF to achieve both objectives. Ethan On Apr 26, 2013 5:11 PM, Edward M. Corrado ecorr...@ecorrado.us wrote: This works sometimes. Well, it does give me a new tiff file from the pdf all of the time, but it is not always anywhere near the same size as the original tiff. My guess is that maybe there is a flag or somethign that woulf help. Here is what I get with one fil: ecorrado@ecorrado:~/Desktop/test$ convert -compress none A001a.tif A001a.pdf ecorrado@ecorrado:~/Desktop/test$ convert -compress none A001a.pdf A001b.tif ecorrado@ecorrado:~/Desktop/test$ ls -al total 361056 drwxrwxr-x 2 ecorrado ecorrado 4096 Apr 26 17:07 . drwxr-xr-x 7 ecorrado ecorrado20480 Apr 26 16:54 .. -rw-rw-r-- 1 ecorrado ecorrado 38497046 Apr 26 17:07 A001a.pdf -rw-r--r-- 1 ecorrado ecorrado 38178650 Apr 26 17:07 A001a.tif -rw-rw-r-- 1 ecorrado ecorrado 5871196 Apr 26 17:07 A001b.tif In this case, the two tif files should be the same size. They are not even close. Maybe there is a flag to convert (besides compress) that I can use. FWIW: I tried three files/ 2 are like this. The other one, the resulting tiff is the same size as the original. Edward On Fri, Apr 26, 2013 at 4:25 PM, Aaron Addison addi...@library.umass.edu wrote: Imagemagick's convert will do it both ways. convert a.tiff b.pdf convert b.pdf a.tiff If the pdf is more than one page, the tiff will be a multipage tiff. Aaron -- Aaron Addison Unix Administrator W. E. B. Du Bois Library UMass Amherst 413 577 2104 On Fri, 2013-04-26 at 16:08 -0400, Edward M. Corrado wrote: Hi All, I have a need to batch convert many TIFF images to PDF. I'd then like to be able to discard the TIFF images, but I can only do that if I can create the original TIFF again from the PDF. Is this possible? If so, using what tools and how? tiff2pdf seems like a possible solution, but I can't find a corresponding pdf2tif program that reverses the process. Any ideas? Edward
Re: [CODE4LIB] tiff2pdf, then back to pdf?
Hardy, You may very well be correct, but some programs claim to keep the original image data unaltered [1], so I was hoping that was the case (basically it would put some sort of wrapper around the tiff. Tiff2pdf on my Ubuntu box seems to keep the file sizes very close when I use it so, I'm thinking it still might be possible. But then again, it might not be and it might depend o the features of the tiff file (and what pdf version) that is being used. If I can't do it, I'll figure something else out, but it would make my life easier to have to deal with only one file for each representation. But, I'll live regardless :-) Edward [1] http://www.davince.com/docs/tiff2pdf.html is one example of a program that says this, but it also does point out not all features of tiff are supported in pdf. It is also old, and they don't offer a program that I can find that does the reversal. On Fri, Apr 26, 2013 at 5:07 PM, Pottinger, Hardy J. pottinge...@missouri.edu wrote: Hi, you'll notice from the language you use to describe your use case, that you use the word convert to describe what you're doing to the original TIFF images. Once you're done producing a derivative from those TIFFs, the only way back to the original TIFFs is to go back to the actual originals. The TIFF images are not stored in the PDF. Only way to go back to the originals is to preserve them. -- HARDY POTTINGER pottinge...@umsystem.edu University of Missouri Library Systems http://lso.umsystem.edu/~pottingerhj/ https://MOspace.umsystem.edu/ Do you love it? Do you hate it? There it is, the way you made it. --Frank Zappa On 4/26/13 3:08 PM, Edward M. Corrado ecorr...@ecorrado.us wrote: Hi All, I have a need to batch convert many TIFF images to PDF. I'd then like to be able to discard the TIFF images, but I can only do that if I can create the original TIFF again from the PDF. Is this possible? If so, using what tools and how? tiff2pdf seems like a possible solution, but I can't find a corresponding pdf2tif program that reverses the process. Any ideas? Edward
Re: [CODE4LIB] tiff2pdf, then back to pdf?
On Fri, Apr 26, 2013 at 5:29 PM, Ethan Gruber ewg4x...@gmail.com wrote: What's your use case in this scenario? Do you want to provide access to the PDFs over the web or are you using them as your archival format? You probably don't want to use PDF to achieve both objectives. The problem I have is I have multipage TIFF files and I don't currently have a good way for users to view them. I also need to preserve these files. Ideally my use case would be to use PDF files created from the TIFFs for both preservation and an archival format. But, as I said, that depends on if I can recreate the original tiff. I have the option of creating a custom viewer that can deal with the the display of the tiff files, but I'm looking for other options. So I have a few choices that I thought of implementing (that I haven't ruled out): 1) This is what I asked about. Make a PDF from the TIFF files. If I could embed the tiff into a pdf, and then at some point recreate the tiff if needed for archival purposes, I have my solution. 2) Convert the multipage TIFF files to individual TIFF files. This would work for my endusers, but would be more clunky than a PDF for them. The new TIFF fiels could be my archival copy. 3) Convert the multipage TIFF files to PDF (probably in a smaller, compressed? state), use the PDF for display/access, save the TIFF for archival purposes. 4) Convert the multipage TIFFs to PDF (or PDF/A?), and don’t worry about being able to recreate the original TIFF files. I should add, the content is what is important in these documents and they are mostly type written or hand written text. Still, I'd like to keep them in as high quality of a format as possible. I'm sure there are some other possible solutions as well. I really would like #1, but it may not be possible. If it isn't, I need to decide (with representatives of my user community) which of the others are better. My guess is it would be #3, but I am not positive. Edward Ethan On Apr 26, 2013 5:11 PM, Edward M. Corrado ecorr...@ecorrado.us wrote: This works sometimes. Well, it does give me a new tiff file from the pdf all of the time, but it is not always anywhere near the same size as the original tiff. My guess is that maybe there is a flag or somethign that woulf help. Here is what I get with one fil: ecorrado@ecorrado:~/Desktop/test$ convert -compress none A001a.tif A001a.pdf ecorrado@ecorrado:~/Desktop/test$ convert -compress none A001a.pdf A001b.tif ecorrado@ecorrado:~/Desktop/test$ ls -al total 361056 drwxrwxr-x 2 ecorrado ecorrado 4096 Apr 26 17:07 . drwxr-xr-x 7 ecorrado ecorrado20480 Apr 26 16:54 .. -rw-rw-r-- 1 ecorrado ecorrado 38497046 Apr 26 17:07 A001a.pdf -rw-r--r-- 1 ecorrado ecorrado 38178650 Apr 26 17:07 A001a.tif -rw-rw-r-- 1 ecorrado ecorrado 5871196 Apr 26 17:07 A001b.tif In this case, the two tif files should be the same size. They are not even close. Maybe there is a flag to convert (besides compress) that I can use. FWIW: I tried three files/ 2 are like this. The other one, the resulting tiff is the same size as the original. Edward On Fri, Apr 26, 2013 at 4:25 PM, Aaron Addison addi...@library.umass.edu wrote: Imagemagick's convert will do it both ways. convert a.tiff b.pdf convert b.pdf a.tiff If the pdf is more than one page, the tiff will be a multipage tiff. Aaron -- Aaron Addison Unix Administrator W. E. B. Du Bois Library UMass Amherst 413 577 2104 On Fri, 2013-04-26 at 16:08 -0400, Edward M. Corrado wrote: Hi All, I have a need to batch convert many TIFF images to PDF. I'd then like to be able to discard the TIFF images, but I can only do that if I can create the original TIFF again from the PDF. Is this possible? If so, using what tools and how? tiff2pdf seems like a possible solution, but I can't find a corresponding pdf2tif program that reverses the process. Any ideas? Edward
Re: [CODE4LIB] tiff2pdf, then back to pdf?
Hi, Edward: After reading through the string of messages and the options that you list below, I think that #3 is your best option. It seems to best fall in line with good archiving practices as I understand them (have one copy for public use and another for archival purposes). If you really want to convert the TIFF to PDF and ditch the TIFF file, I would suggest using PDF/A, the archival version of PDF, if you can. Best of luck! Sincerely, Jason __ Jason Curtis Technical Services Librarian Legal Research Center University of San Diego 5998 Alcalá Park San Diego, CA 92110 Ph: (619) 260-4600, ext.2875 Fax: (619) 260-7495 cur...@sandiego.edu -Original Message- From: Code for Libraries [mailto:CODE4LIB@LISTSERV.ND.EDU] On Behalf Of Edward M. Corrado Sent: Friday, April 26, 2013 2:55 PM To: CODE4LIB@LISTSERV.ND.EDU Subject: Re: [CODE4LIB] tiff2pdf, then back to pdf? On Fri, Apr 26, 2013 at 5:29 PM, Ethan Gruber ewg4x...@gmail.com wrote: What's your use case in this scenario? Do you want to provide access to the PDFs over the web or are you using them as your archival format? You probably don't want to use PDF to achieve both objectives. The problem I have is I have multipage TIFF files and I don't currently have a good way for users to view them. I also need to preserve these files. Ideally my use case would be to use PDF files created from the TIFFs for both preservation and an archival format. But, as I said, that depends on if I can recreate the original tiff. I have the option of creating a custom viewer that can deal with the the display of the tiff files, but I'm looking for other options. So I have a few choices that I thought of implementing (that I haven't ruled out): 1) This is what I asked about. Make a PDF from the TIFF files. If I could embed the tiff into a pdf, and then at some point recreate the tiff if needed for archival purposes, I have my solution. 2) Convert the multipage TIFF files to individual TIFF files. This would work for my endusers, but would be more clunky than a PDF for them. The new TIFF fiels could be my archival copy. 3) Convert the multipage TIFF files to PDF (probably in a smaller, compressed? state), use the PDF for display/access, save the TIFF for archival purposes. 4) Convert the multipage TIFFs to PDF (or PDF/A?), and don't worry about being able to recreate the original TIFF files. I should add, the content is what is important in these documents and they are mostly type written or hand written text. Still, I'd like to keep them in as high quality of a format as possible. I'm sure there are some other possible solutions as well. I really would like #1, but it may not be possible. If it isn't, I need to decide (with representatives of my user community) which of the others are better. My guess is it would be #3, but I am not positive. Edward Ethan On Apr 26, 2013 5:11 PM, Edward M. Corrado ecorr...@ecorrado.us wrote: This works sometimes. Well, it does give me a new tiff file from the pdf all of the time, but it is not always anywhere near the same size as the original tiff. My guess is that maybe there is a flag or somethign that woulf help. Here is what I get with one fil: ecorrado@ecorrado:~/Desktop/test$ convert -compress none A001a.tif A001a.pdf ecorrado@ecorrado:~/Desktop/test$ convert -compress none A001a.pdf A001b.tif ecorrado@ecorrado:~/Desktop/test$ ls -al total 361056 drwxrwxr-x 2 ecorrado ecorrado 4096 Apr 26 17:07 . drwxr-xr-x 7 ecorrado ecorrado20480 Apr 26 16:54 .. -rw-rw-r-- 1 ecorrado ecorrado 38497046 Apr 26 17:07 A001a.pdf -rw-r--r-- 1 ecorrado ecorrado 38178650 Apr 26 17:07 A001a.tif -rw-rw-r-- 1 ecorrado ecorrado 5871196 Apr 26 17:07 A001b.tif In this case, the two tif files should be the same size. They are not even close. Maybe there is a flag to convert (besides compress) that I can use. FWIW: I tried three files/ 2 are like this. The other one, the resulting tiff is the same size as the original. Edward On Fri, Apr 26, 2013 at 4:25 PM, Aaron Addison addi...@library.umass.edu wrote: Imagemagick's convert will do it both ways. convert a.tiff b.pdf convert b.pdf a.tiff If the pdf is more than one page, the tiff will be a multipage tiff. Aaron -- Aaron Addison Unix Administrator W. E. B. Du Bois Library UMass Amherst 413 577 2104 On Fri, 2013-04-26 at 16:08 -0400, Edward M. Corrado wrote: Hi All, I have a need to batch convert many TIFF images to PDF. I'd then like to be able to discard the TIFF images, but I can only do that if I can create the original TIFF again from the PDF. Is this possible? If so, using what tools and how? tiff2pdf seems like a possible solution, but I can't find a corresponding pdf2tif program that reverses the process. Any
Re: [CODE4LIB] tiff2pdf, then back to pdf?
Although I do find the persistent myth of PDF/A as an archival format amusing. Under very specific circumstances it can be, but its rare for those circumstances to be deliberatively met. And for many languages it is impossible to use pdf for archival purpuses ever. It is the nature of PDF. On 27/04/2013 8:28 AM, Jason Curtis cur...@sandiego.edu wrote: Hi, Edward: After reading through the string of messages and the options that you list below, I think that #3 is your best option. It seems to best fall in line with good archiving practices as I understand them (have one copy for public use and another for archival purposes). If you really want to convert the TIFF to PDF and ditch the TIFF file, I would suggest using PDF/A, the archival version of PDF, if you can. Best of luck! Sincerely, Jason __ Jason Curtis Technical Services Librarian Legal Research Center University of San Diego 5998 Alcalá Park San Diego, CA 92110 Ph: (619) 260-4600, ext.2875 Fax: (619) 260-7495 cur...@sandiego.edu -Original Message- From: Code for Libraries [mailto:CODE4LIB@LISTSERV.ND.EDU] On Behalf Of Edward M. Corrado Sent: Friday, April 26, 2013 2:55 PM To: CODE4LIB@LISTSERV.ND.EDU Subject: Re: [CODE4LIB] tiff2pdf, then back to pdf? On Fri, Apr 26, 2013 at 5:29 PM, Ethan Gruber ewg4x...@gmail.com wrote: What's your use case in this scenario? Do you want to provide access to the PDFs over the web or are you using them as your archival format? You probably don't want to use PDF to achieve both objectives. The problem I have is I have multipage TIFF files and I don't currently have a good way for users to view them. I also need to preserve these files. Ideally my use case would be to use PDF files created from the TIFFs for both preservation and an archival format. But, as I said, that depends on if I can recreate the original tiff. I have the option of creating a custom viewer that can deal with the the display of the tiff files, but I'm looking for other options. So I have a few choices that I thought of implementing (that I haven't ruled out): 1) This is what I asked about. Make a PDF from the TIFF files. If I could embed the tiff into a pdf, and then at some point recreate the tiff if needed for archival purposes, I have my solution. 2) Convert the multipage TIFF files to individual TIFF files. This would work for my endusers, but would be more clunky than a PDF for them. The new TIFF fiels could be my archival copy. 3) Convert the multipage TIFF files to PDF (probably in a smaller, compressed? state), use the PDF for display/access, save the TIFF for archival purposes. 4) Convert the multipage TIFFs to PDF (or PDF/A?), and don't worry about being able to recreate the original TIFF files. I should add, the content is what is important in these documents and they are mostly type written or hand written text. Still, I'd like to keep them in as high quality of a format as possible. I'm sure there are some other possible solutions as well. I really would like #1, but it may not be possible. If it isn't, I need to decide (with representatives of my user community) which of the others are better. My guess is it would be #3, but I am not positive. Edward Ethan On Apr 26, 2013 5:11 PM, Edward M. Corrado ecorr...@ecorrado.us wrote: This works sometimes. Well, it does give me a new tiff file from the pdf all of the time, but it is not always anywhere near the same size as the original tiff. My guess is that maybe there is a flag or somethign that woulf help. Here is what I get with one fil: ecorrado@ecorrado:~/Desktop/test$ convert -compress none A001a.tif A001a.pdf ecorrado@ecorrado:~/Desktop/test$ convert -compress none A001a.pdf A001b.tif ecorrado@ecorrado:~/Desktop/test$ ls -al total 361056 drwxrwxr-x 2 ecorrado ecorrado 4096 Apr 26 17:07 . drwxr-xr-x 7 ecorrado ecorrado20480 Apr 26 16:54 .. -rw-rw-r-- 1 ecorrado ecorrado 38497046 Apr 26 17:07 A001a.pdf -rw-r--r-- 1 ecorrado ecorrado 38178650 Apr 26 17:07 A001a.tif -rw-rw-r-- 1 ecorrado ecorrado 5871196 Apr 26 17:07 A001b.tif In this case, the two tif files should be the same size. They are not even close. Maybe there is a flag to convert (besides compress) that I can use. FWIW: I tried three files/ 2 are like this. The other one, the resulting tiff is the same size as the original. Edward On Fri, Apr 26, 2013 at 4:25 PM, Aaron Addison addi...@library.umass.edu wrote: Imagemagick's convert will do it both ways. convert a.tiff b.pdf convert b.pdf a.tiff If the pdf is more than one page, the tiff will be a multipage tiff. Aaron -- Aaron Addison Unix Administrator W. E. B. Du Bois Library UMass Amherst 413 577 2104 On Fri, 2013-04-26 at 16:08 -0400, Edward M. Corrado
