Tile PNG, Adjoin into PDF - Offset Problem
Posted: 2011-10-10T09:15:21-07:00
Hello
Can anyone explain how to fix the following problem?
I split an image into tiles using:
convert x.png -crop 750x1000 'tiles-%d'
Then I make a pdf where each tile gets a whole page:
convert -adjoin "'tiles-0' 'tiles-1' ..." -units PixelsPerInch -density 100 'pdf:p'
If I use jpgs instead of pngs, this all works fine. But if I use pngs, the image on each page is increasingly offset to the right and down.
I gather ImageMagick can't store offset information in jpgs when tiling, but that it manages to do this for pngs. I assume the solution is to get ImageMagick to ignore offset info in the pngs, or not to create it all. I've tried adding +page and +repage in various places but haven't found the right permutation.
Does anyone know how to change those 2 commands above to fix the problem?
Can anyone explain how to fix the following problem?
I split an image into tiles using:
convert x.png -crop 750x1000 'tiles-%d'
Then I make a pdf where each tile gets a whole page:
convert -adjoin "'tiles-0' 'tiles-1' ..." -units PixelsPerInch -density 100 'pdf:p'
If I use jpgs instead of pngs, this all works fine. But if I use pngs, the image on each page is increasingly offset to the right and down.
I gather ImageMagick can't store offset information in jpgs when tiling, but that it manages to do this for pngs. I assume the solution is to get ImageMagick to ignore offset info in the pngs, or not to create it all. I've tried adding +page and +repage in various places but haven't found the right permutation.
Does anyone know how to change those 2 commands above to fix the problem?