In our upgrade to 5.3 I am trying to compare our old PDF files (5.2M020)to the new ones created with 5.3. I have gotten most of the external variables checked so that I think everything should be using the same environments, but I might be missing something. What I have run into is that the word spacing (full justification) is slightly different such that words are hyphenated sometimes and not other times. This causes the pages to not compare.
The other thing is that when you cut and paste text from sections of the PDF to a text editor you get different results.
5.2M020 for a minimum 28 days’
5.3M030 for a minimum28 days’
Sometimes the spaces are missing in the other direction. This throws off the application we have to compare pages for changes for our loose leaf page count. From my understanding this application usesthe open source code of PDFbox. I haven't dug into that aspect of the code.