Am 06.03.2017 um 18:09 schrieb Evan Williams:
Hi Tilman!
So, it develops that the fax service has an upper limit of 4 Mb per
individual uploaded file. So I will probably try to implement your PDFSplit
solution (I tried compressing the file but was unable to get it under 4 Mb).
I am concerned about memory and processing time for the PDFSplit but the
fax service seems unwilling to contemplate fixing this on their end (their
actual render works fine with the form, it is just their API layer that
imposes the limit).
Thanks for the news.... I had another look at your PDF. It is not very
efficient... for example, the same colorspace is used several times; the
same font (but different subsets) is in each page. Instead of only one
entry for each font. The company logos are not in an XObject form, so
they are repeated for each page. If you're the creator of the file,
maybe you can do something there...
Tilman
On Fri, Mar 3, 2017 at 12:35 PM, Tilman Hausherr <[email protected]>
wrote:
Am 03.03.2017 um 14:31 schrieb Evan Williams:
The first sign of trouble is, various PDF renderers in browsers were
displaying fields that had been filled in as blank (intermittently).
Chrome's PDF viewer was one such culprit. Need Appearances was set to true
with this form, so I set it to False and refreshed the appearances, which
may or may not have fixed it (if it doesn't I will do a full flatten on
it).
More seriously, the faxing service that we use chokes on this form. They
are unable to render it even if I don't fill it out and send them the
original PDF. They are investigating this on their end, but since this is
the only PDF that has ever had this issue and because of its previous
suspicious behavior, I believe that it might be corrupt in some subtle way
that I don't understand. PDFBox seems to have no trouble working with it,
and it is viewable and printable in Acrobat and in third party viewers.
But
I am uncertain.
It would be useful to have a version of this PDF with entries and then see
what happens with Chrome. And then pass that one there.
Re that fax service, try PDFSplit to split it in single pages, and then
try with every single page. That should narrow the problem.
PDF is a complex format... there are many (including us) that don't
implement all. Normally this shouldn't lead to a crash.
Tilman
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