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When converting 1 bit color depth tiff (black and white) to pdf, result will not display on Windows Adobe Reader 11.0.08.4 (with error "Insufficient data for an image). It displays with red and green instead of black and white on PDF-XChange 5.5. It displays fine on evince 43.1.
No problem when converting 8 bit color depth tiff to pdf.
I tried 6.9.12-97 Q16-HDRI in win10 and it works fine. Unfortunately the version on the Debain 12 (as well as 11) distribution is 6.9.11-60, which why I tried that version previously.
ImageMagick version
6.9.11-60
Operating system
Linux
Operating system, version and so on
Debian GNU/Linux 12 (bookworm)
Description
When converting 1 bit color depth tiff (black and white) to pdf, result will not display on Windows Adobe Reader 11.0.08.4 (with error "Insufficient data for an image). It displays with red and green instead of black and white on PDF-XChange 5.5. It displays fine on evince 43.1.
No problem when converting 8 bit color depth tiff to pdf.
Steps to Reproduce
convert -density 300 t1.tif -threshold 67% -monochrome -compress group4 t1.pdf
or
convert t1.tif t1.pdf
The following work ok:
convert -density 300 t8.tif -threshold 67% -monochrome -compress group4 t8.pdf
and
convert t8.tif t8.pdf
Interestingly enough,
convert -density 300 t8.tif -threshold 67% -monochrome -compress group4 t8.pdf
produces a smaller pdf than
convert -density 300 t1.tif -threshold 67% -monochrome -compress group4 t1.pdf
Images
t.zip
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