[CODE4LIB] Job: Digital Assets Manager at Glasgow Caledonian University
Grade: 5 Salary Scale: £25,504 - £29,541 (Point 24 - 29)* Contract: Full-time/ Open-ended Closing Date: 06 May 2013 Ref: HR1597 Library Services at Glasgow Caledonian University wishes to appoint a Digital Assets Manager. The role holder will have responsibility for the maintenance, development and promotion of GCUStore, our multimedia repository, and will assist in the work of the Digital Development and Information Literacy (DDIL) section. This will include assisting in the development and maintenance of a range of library IT systems including the library management and discovery systems, web 2.0, portal and social media technologies. The successful candidate will have a relevant degree and/or the ability to demonstrate relevant experience in an academic or equivalent library service. They will have excellent people and communication skills, the ability to develop and maintain effective working relationships at all levels within an organisation and will be committed to learning new tasks and skills in the course of their development. Knowledge of Fedora repositories, Ruby on Rails programming and library systems and copyright is desirable. If you wish to know more about this role or for an informal discussion please feel free to contact Marion Kelt on 0141 273 1208 or at m.k...@gcu.ac.uk. For comprehensive details of this exciting opportunity and how to apply, please [visit our website](http://www.gcu.ac.uk/jobs/vacancies/HR1597-DigitalA ssetsManager.html). *Please note that the appointment will be made on the first point of the salary scale (unless by exception). Brought to you by code4lib jobs: http://jobs.code4lib.org/job/7715/
Re: [CODE4LIB] tiff2pdf, then back to pdf?
Yes, exactly. You will loose some of the image quality. If you change to a compressed format, then back to the TIFF, you can get the format, but you can't go back to the original file. Stop and think: What are your long term goals? Big files are clunky to work with. I'm guessing that's why you don't want TIFF. In my experience, files big enough to be clunky are discarded within a few years, regardless of the intentions when they were prepped. If you want to avoid big files, then your best bet is to assess and test the file you will actually keep and do the best job you can with it. So, if you want to rerun OCR in a few years when the recognition will be better, then make your PDFs in such a way that you can get decent OCR out of them today, and plan to rerun on those files, not the (discarded) originals. Don't think reformatting will get you any better image quality later. -Wilhelmina Randtke On Fri, Apr 26, 2013 at 3:19 PM, James Gilbert gilber...@whitehallpl.orgwrote: 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?
As someone who works on document recognition, I have to disagree. You should always keep an uncompressed original around, since you can never recover it without (often expensive) re-imaging. JPEG, or any other type of lossy compression, introduces artifacts that don't look too bad by the human eye, but have a significant effect on the quality of OCR. You can never recover this after you have discarded your originals. Big files are clunky to work with, which is why you should have an automated way of producing surrogate, compressed copies for general use, but like any archivist will tell you, a photocopy is not a replacement for the original. -Andrew On 2013-04-27, at 7:17 PM, Wilhelmina Randtke rand...@gmail.com wrote: Yes, exactly. You will loose some of the image quality. If you change to a compressed format, then back to the TIFF, you can get the format, but you can't go back to the original file. Stop and think: What are your long term goals? Big files are clunky to work with. I'm guessing that's why you don't want TIFF. In my experience, files big enough to be clunky are discarded within a few years, regardless of the intentions when they were prepped. If you want to avoid big files, then your best bet is to assess and test the file you will actually keep and do the best job you can with it. So, if you want to rerun OCR in a few years when the recognition will be better, then make your PDFs in such a way that you can get decent OCR out of them today, and plan to rerun on those files, not the (discarded) originals. Don't think reformatting will get you any better image quality later. -Wilhelmina Randtke On Fri, Apr 26, 2013 at 3:19 PM, James Gilbert gilber...@whitehallpl.orgwrote: 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
