Re: [iText-questions] open-source PDF validation

2008-08-21 Thread Leonard Rosenthol
Right - so the PDF validator in Acrobat professional does all of the four things you mention, as well as a few other checks and validations (including loading each font and image to see if the stream data is valid for the object in question). It's not perfect either - of course, but AFAIK,

Re: [iText-questions] open-source PDF validation

2008-08-21 Thread AJ Weber
Well I think I can agree with most of your assertions. However, there should be a pretty thorough way to do at least the following: 1) For each "element" (object, etc.) that exists in the file, check that it is "well formed" according to the PDF Reference. 2) For objects that reference other obj

Re: [iText-questions] open-source PDF validation

2008-08-21 Thread Hans-Werner Hilse
Hi, Leonard Rosenthol wrote: > Be aware that JHOVE is NOT a complete verifier - and it says so it > their documentation. It's certainly something that one could use as > a "first pass", but don't rely on it. As a side note, a bit nitpicking: Theoretically, there can't be a complete verifier.

Re: [iText-questions] open-source PDF validation

2008-08-21 Thread Leonard Rosenthol
Be aware that JHOVE is NOT a complete verifier - and it says so it their documentation. It's certainly something that one could use as a "first pass", but don't rely on it. Leonard On Aug 21, 2008, at 9:55 AM, Sheila M. Morrissey wrote: Hello, Some may find the JHOVE pdf module useful fo