Am 13.07.24 um 03:05 schrieb Lee Howard:
On 7/10/24 6:38 AM, Ulf Zibis via Tiff wrote:
I have some TIFF files with DPI=150 and =200, compressed with FAX G4,
format/size DIN A4, which I want to convert to PDF.
With no special options the resulting PDF has only DPI=96 and the picture
resolution is reduced accordingly, so information is lost.
I'm not able to reproduce this.
How are you determining that the resulting PDF only has 96 dpi?
I used IrfanView (via Wine on Ubuntu) to check the result.
How are you determining that your original TIFFs are 150 dpi or 200 dpi?
I too used IrfanView to check the original.
I've constructed a G4 TIFF image with 200x200 dpi:
I can reproduce your results when using your 3 commands.
So the bug is in IrfanView. If always loads PDF with 96 DPI, regardless of the
real DPI.
Thanks for your effort.
-Ulf
--
Von meinem Seibert gesendet
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