Forums › TWAIN Classic › Strange scaling when using ICAP_UNITS, TWUN_PIXELS › Reply To: Strange scaling when using ICAP_UNITS, TWUN_PIXELS
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Yes, this is a bug in the source code. When the client sets image layout in pixels, the size is interpreted by the source as if the resolution is fixed 300ppi, which predictably results in an incorrect scan size for all resolutions other than 300.
Workaround — use 300ppi or set the size in inches or cm.