PdfSmartCopy only compares streams.
Paulo
________________________________
From: Leonard Rosenthol [mailto:[email protected]]
Sent: Monday, March 22, 2010 6:13 PM
To: Post all your questions about iText here
Subject: Re: [iText-questions] design pattern
How does SmartCopy determine "image equality"?
From: Paulo Soares [mailto:[email protected]]
Sent: Monday, March 22, 2010 1:55 PM
To: Post all your questions about iText here
Subject: Re: [iText-questions] design pattern
In PdfsmartCopy if the images are the same only one instance will be used but
subset fonts won't be merged and you'll end up with an instance per file
inserted. It will also use a lot of memory for the generation. iText does a lot
of things but it's not particulary efficient memorywise and will always lose
for a custom app written in C. The best way to evaluate this is to create test
PDFs, do the process and see the result.
Paulo
________________________________
From: Jason Berk [mailto:[email protected]]
Sent: Monday, March 22, 2010 5:30 PM
To: Post all your questions about iText here
Subject: Re: [iText-questions] design pattern
I understand....in the meantime, could you answer this question:
if I create one PDF and add 100,000 pages, what will it's file size be relative
to creating 100,000 PDFs and using PdfSmartCopy to concat them together? If
the difference is a few KB/MB I'll go that route. If it's 10s or 100s of MB,
I'll explore other solutions.
I'm curious....
jason
________________________________
From: Leonard Rosenthol [mailto:[email protected]]
Sent: Sunday, March 21, 2010 5:15 PM
To: Post all your questions about iText here
Subject: Re: [iText-questions] design pattern
If you're doing that type of volume - I would strongly recommend that you
invest in commercial-grade solutions for document merging, many of which also
support PDF optimization options.
iText is a great product, but there are some things it simply doesn't do well -
large volume document assembly is one of them (see the archives of the mailing
list for discussions on this in the past).
Leonard
From: Jason Berk [mailto:[email protected]]
Sent: Sunday, March 21, 2010 5:06 PM
To: Post all your questions about iText here; Post all your questions about
iText here
Subject: Re: [iText-questions] design pattern
I think you misunderstood. The images are TIF or PNG files. The pages are NOT
images.
I need to create 60,000 PDFs and concatenate 30,000 of them together into a
single "print" file.
priority 1 is to avoid creating the pdf content for a given account twice.
priority 2 is to create the smallest possible print file (size wise)
if I create one PDF and add 100,000 pages, what will it's file size be relative
to creating 100,000 PDFs and using PdfSmartCopy to concat them together? If
the difference is a few KB/MB I'll go that route. If it's 10s or 100s of MB,
I'll explore other solutions.
Thanks,
Jason
-----Original Message-----
From: Leonard Rosenthol [mailto:[email protected]]
Sent: Sun 3/21/2010 1:05 PM
To: Post all your questions about iText here
Subject: Re: [iText-questions] design pattern
Why are the pages images and not real text and vector objects? If you want
small files, DON'T use raster images!
From: Jason Berk [mailto:[email protected]]
Sent: Sunday, March 21, 2010 12:47 PM
To: [email protected]
Subject: [iText-questions] design pattern
hello all.
looking for advice...
my credit union has 60K members. I need to produce a single PDF for each
member that uses low res images (96 DPI). This is know as the "E-Statement".
For about half of the members, I also need to produce a "print statement"
version which uses 300 DPI images. The print statement needs to be just one
single PDF (with thousands of pages). I would like this print file to be as
small as possible.
it is possible to
1) create a statement with a button as an image place holder
2) save that statement as a singular PDF after adding low res images to the
buttons
3) concat that statement to an open PDF stream after adding high res images to
the buttons (so the pdf specific stuff isn't repeated with each statement)
I've read this: http://1t3xt.info/examples/browse/?page=example&id=347 which
shows how to set button images and I've read about using PdfSmartCopy to concat
PDFs, but from what I read, the PDF innards will still be repeated in my
resulting file, eating up file size (please correct me if this is not the case)
I've also thought about creating two different processes...once to create e
versions and one to create the print file, but that seems inefficient as I'd be
creating the (hopefully) same statement twice for basically half of my accounts
and could potentially result in the statement looking slightly different
between e and print versions.
The end goal is for a member to get his print statement in the mail, and print
the estatement from online banking and (basically) not be able to tell which is
which.
how would you all handle this with iText / Java?
(FYI: this is a server side java process...no web container)
Thanks for any opinions / help.
Jason
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