[Poppler-bugs] [Bug 89868] New: pdftoppm takes about 2 hours at ~100% CPU to rasterize single-page PDF

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=89868

            Bug ID: 89868
           Summary: pdftoppm takes about 2 hours at ~100% CPU to rasterize
                    single-page PDF
           Product: poppler
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: utils
          Assignee: poppler-bugs at lists.freedesktop.org
          Reporter: yasin at plangrid.com

On Ubuntu using Poppler 0.32.0

Rasterizing a single-page PDF at a 150 DPI resolution using pdftoppm takes
about 7600 seconds at ~100%. The same PDF takes about 10 seconds to rasterize
using Ghostscript.

I've run the following command for pdftoppm:

pdftoppm -cropbox -thinlinemode solid -r 150 -gray /path/to/slow.pdf
/path/to/slow.ppm

And this one for gs:

gs -sDEVICE=tiffgray -sOutputFile=/path/to/slow.tiff -r150 -dBATCH -dNOPAUSE
/path/to/slow.pdf

Since the PDF is sensitive, I'll need to send it via email to whomever is
interested.

Any help would be appreciated. Thank you!

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