resolution, size when extracting from pdf vs the gimp
Posted: 2015-07-06T23:50:05-07:00
I have a pdf of scanned images, theoretically jpeg images.
ImageMagick's identify -verbose tells me the same are 1032x728 at 72 dpi. If I use ImageMagick's convert to extract them, that's how they end up.
The gimp, on the other hand, will offer me a selection dialog, from which it will import them individually as 1304x932 at 100 px/in.
Either way is odd, because I selected 300dpi at scan time. But, then, 22Mb for 36 images is not 13" x 9" at 300 dpi, unless heavily compressed.
Anyone have an idea what's happening?
Joel Rees
ImageMagick's identify -verbose tells me the same are 1032x728 at 72 dpi. If I use ImageMagick's convert to extract them, that's how they end up.
The gimp, on the other hand, will offer me a selection dialog, from which it will import them individually as 1304x932 at 100 px/in.
Either way is odd, because I selected 300dpi at scan time. But, then, 22Mb for 36 images is not 13" x 9" at 300 dpi, unless heavily compressed.
Anyone have an idea what's happening?
Joel Rees