This +1.
600dpi, G4 compression. (Not JPEG compression -- Never JPEG)
I've got some terrible Linux scripts that use NETPBM/ImageMagick/Tiff
tools to build PDFs for the few I've ever scanned, but the process
varies greatly for every different document.
On Mon, Feb 17, 2025 at 10:14?AM Dave Daniel via groups.io
<kc0wjn@...> wrote:
I usually scan the manual pages at 1200 or 600 dpi to PDF form and save them. Then if I want to load them on a reading device or share them, I'll use Adobe to downsample the file(s) to a lower resolution, usually 300 dpi.
DaveD
KC0WJN
On Mon, Feb 17, 2025 at 09:42 Peter Brown via groups.io <peter@...> wrote:
I have recently been scanning sections of microfiched service manuals for a couple of group members using a Canon MS-800
There is a significant tradeoff between file size and readability (especially with circuit diagrams)
To simplify the scanning process I have been acquiring everything at maximum equipment resolution but this leads to files that might be 200Mb+ per fiche
These are unwieldy but get the job done
Does anyone in the group have experience with tools that might be used to post process these scans to reduce size whilst maintaining small font fidelity?
Any recommendations?
