Error message: Adobe Acrobat Reader could not open [filename.pdf] because it is either not supported file type or because the file has been damaged..

[miker14781085]

I found an answer to this error in the forum but the circumstances are completely different.

We are using a PDF stitch function built into an application called Intelledox and in most cases the stitched PDF opens just fine in Adobe Acrobat DC, but we have one file that gets the above error.

Form 1047 and form 1047AD are stitched into a single PDF titled 1047_Smart_Form_AD   works fine

Form 1090 and 1090AD are stitched into a single PDF titled 1090_Smart_Forms_AD - error listed above

Form 1047 and 1090AD are stitched into single PDF title 1047_smart_Forms_AD_1090  works fine

Form 1090 and 1047AD are stitched into single PDF titled 1090_Smart_Forms_AD_1047 error above

Form 1090AD and 1047 are stitched into a single PDF titled 1090AD_Smart_Forms_AD_107 error above

The stitched files that failed to open have no data, so it may be that the issue is within the Stitching utility, but even so it must be caused by something in the forms.

All of the component PDFs open just fine..

We have inspected everything we can think to look at on the fillable PDFs and cannot identify any differences between the forms that would suggest that random combinations would fail to be successfully stitched together...

Any thoughts or ideas on what may be happening here?

[AkanchhaS]

Hey Miker,

Sorry to hear about the trouble caused.

If we look at the error message, It seems that the email server has corrupted the file by encoding it incorrectly. Please ask the original sender to zip the PDF file, or share it using cloud storage like Dropbox or Google Drive.

Any idea how exactly those files were created or what was the source of those files?

• You may try the troubleshooting steps suggested in the help article here:  Resolve damaged document error when opening PDF files
• This error also caused, when PDF file was created by selecting the option "Save as PDF" from the Mac OS Print dialog using any other application e.g. Ai or Id. This workflow is actually not supported.
• Check the current version of appication Identify the product and its version for Acrobat and Reader DC  and install the required update if its not up-to-date. DC Release Notes — Release Notes for Acrobat DC Products

Let us know the result.

Thanks,

Akanchha

[miker14781085]

There is NO Email server involved. I think that this was the closest error

message the system thought appropriate.

The original PDFs were created as fillable forms in Acrobat Pro. They are

populated using a tool called Infiniti Intelledox and stitched together

(when multiple forms are required) by a tool within intelledox.

The stitching works fine for most of the form pairs, but not for one pair.

The odd thing is that while A and AA stitch together fine, B and BB don't.

even stranger is that

A and BB stitches together fine

B and AA doesn't work

BB and A stitches together fine

in the cases where the stitch is successful the stitched file size is

roughly = to sum of component PDFs, in the cases where the stitching fails,

the stitched file is empty (0kb)… even the blank component fillable PDFs

take up several hundred kb.

have tried several other combinations with no discernable pattern.

We have also reached out to Infiniti Intelledox to research from their end

but both parties believe it is related to some hidden info in the fillable

forms and I'm hoping someone may have had a similar issue in the past.