On 28/03/2008, trjonescp <[EMAIL PROTECTED]> wrote:
> Here is an example of a blank pdf out (all six pages) using PNG
>  compression. When I chose compression None it worked fine.

Please start gscan2pdf from the command line with

gscan2pdf --debug

and post the output from the command line when you save a PDF that
incorrectly has blank pages.

Posting blank results isn't so helpful - I believe you. If you can
post an image, that when imported, produces a blank PDF - that would
be very useful.

Importing a PNM (the format that libsane produces) and saving a PDF
with PNG compression works fine here. However, I do see an error
message (a dialog box appears) if I save the same with PNG compression
AND downsampling to 100dpi:

16-bits of rgb in png not supported. at
/usr/lib/perl5/site_perl/5.8.5/PDF/API2/Resource/XObject/Image/PNG.pm
line 132.

So I have something to work on.

Interestingly, importing a PNG that was scanned at 300dpi, saving as
PDF with compression=none, but downsampling to 100dpi looks OK in
Acrobat Reader, but not in Xpdf (blank black) or Kgshostview (blank
white).

-- 
gscan2pdf generates blank pages in the .pdf output
https://bugs.launchpad.net/bugs/204988
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