Comparing 2 PDF files

It is quite a frequent question on the PDF forums, asking how to compare 2 versions of a PDF file to see  what has changed. This is actually one of those cases where generally the person means something slightly different. Usually this means ‘how can I see what has changed visually‘. PDF is a flexible…

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Why use PDF as a file format

A lot of people ask why the PDF file format is so popular? After all, it can be very hard to edit it.  Well, I was going to write an entry to explain but Duff Johnson has already published a really eloquent article explaining exactly why so I will recommend that. Do you agree with…

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Understanding the PDF File format series

We have been publishing a series of articles entitled Understanding the PDF file format. In each article we try to take a specific PDF feature and explain it in simple terms. You can see all the articles so far here. If you have any suggestions or items, you would like to see, contact us. Related Posts:How…

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