Compare 2 PDFs

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   I'm willing to migrate from QuickPDF to CutePDF.

Then, I want to compare the PDFs generated from both ones.

Say that I have generated a PDF , from a template, mixing my data, using QuickPDF. Then I generate PDF_ONE.

Then I do the same, by using CutePDF, generating PDF_TWO.

Now I want to compare PDF_ONE x PDF_TWO, in order to see if they're identical.

What could I do ? 

I expect form fields to be flattened on both PDFs....

My intention is to detect, automatically, if there's some problem on any one of them...

Thanks !

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jabaltie Members Profile Find Members Posts Senior Member Joined: 08 Nov 05 Location: Brazil Status: Offline Points: 138	Post Options Post Reply Quote jabaltie Report Post Thanks(0) Quote Reply Topic: Compare 2 PDFs Posted: 20 Dec 07 at 11:40AM
	I'm willing to migrate from QuickPDF to CutePDF. Then, I want to compare the PDFs generated from both ones. Say that I have generated a PDF , from a template, mixing my data, using QuickPDF. Then I generate PDF_ONE. Then I do the same, by using CutePDF, generating PDF_TWO. Now I want to compare PDF_ONE x PDF_TWO, in order to see if they're identical. What could I do ? I expect form fields to be flattened on both PDFs.... My intention is to detect, automatically, if there's some problem on any one of them... Thanks !

swb1 Members Profile Find Members Posts Debenu Quick PDF Library Expert Joined: 05 Dec 05 Location: United States Status: Offline Points: 100	Post Options Post Reply Quote swb1 Report Post Thanks(0) Quote Reply Posted: 20 Dec 07 at 12:01PM
	I don�t think it�s possible. The PDF specification is too wide open. I have seen many PDF�s that appear the same yet are constructed so differently that the only valid consideration is visual appearance & field input performance. A comparison of the PDF file contents is almost certainly going to vary from one producer to another.