I need help - I can help - Change a PDFs version from 1.2 to 1.6

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Change a PDFs version from 1.2 to 1.6

Printed From: Debenu Quick PDF Library - PDF SDK Community Forum
Category: For Users of the Library
Forum Name: I need help - I can help
Forum Description: Problems and solutions while programming with the Debenu Quick PDF Library and Debenu PDF Viewer SDK
URL: http://www.quickpdf.org/forum/forum_posts.asp?TID=3690
Printed Date: 02 May 24 at 1:47PM
Software Version: Web Wiz Forums 11.01 - http://www.webwizforums.com

Topic: Change a PDFs version from 1.2 to 1.6

Posted By: BobW
Subject: Change a PDFs version from 1.2 to 1.6
Date Posted: 27 Mar 19 at 4:51PM

What is the best way to read in a version 1.2 PDF and save it as a version 1.6?

I have a PDF that is version 1.2 and a PDF that is 1.5. When I combine them using CopyPageRangeEX, the resulting document is shown as version 1.2 in Adobe Reader but when I move to the second page, (the 1.5 page) I get an error "Bad Parameter." That page is blank in the reader. I can extract text from the page so I know it's in there.

I was able to combine the two documents then encrypt them which converts the entire document to version 1.6. I'm encrypting it with a blank password so anyone can read it. I'm wondering if there is a better method to do this. Honestly, it took me a while to figure this out. I've been using all the versions of this library from 9 to the current and I've combined literally thousands of PDFs and never seen this issue before.

Replies:

Posted By: tfrost
Date Posted: 27 Mar 19 at 7:07PM

The documentation says you can set the PDF Version using the SetInformation function. I have never tried this, so I have no idea whether it has any effect on the format of the the contents when you save it. Have you tried anything less ingenious (and clever) than encrypting it without a password?

Posted By: BobW
Date Posted: 27 Mar 19 at 7:47PM

That worked great! I'm going to use that instead. I was pretty sure the encryption would probably work. Since a 1.2 file can only go to 40 bits and to encrypt at 128 and higher requires a later version, it would have to update the version to get that level of encryption. This is a much better solution!

I did try searching the forums, but "version" is found in nearly every post since the user needs to specify which version of the control they are using!

Again, thanks!

Posted By: tfrost
Date Posted: 27 Mar 19 at 10:18PM

No problem! I had just remembered having seen a means to set the stuff you see with Control-D in Acrobat, and I had an idea that PDF version was visible there also.