I've got a TIFF file coming from Photoshop CC 2015. It has 3991 x 3991 px. Since it should be printed at 550 x 550 mm, Photoshop has the ppi to 184.30 in EXIF. I'm using this to convert the TIFF to PDF with JPEG-compression:
Code: Select all
convert2 -strip -interlace Plane -define jpeg:dct-method=float -quality 85 source.tif result.tif
My version installed: ImageMagick 6.9.1-3 Q16 i686 2015-07-01 http://www.imagemagick.org
Is there a work-around always to auto-set the ppi (no resizing etc.) to make it fit to 550 x 500 mm ?