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extracting bitmap images from selections?extracting bitmap images from selections?Posted Nov 30, 2004 6:32 UTC (Tue) by larryr (guest, #4030)In reply to: extracting bitmap images from selections? by stevenj Parent article: The Grumpy Editor's Guide to PDF Viewers
I dont know if its a decent answer, but I sometimes use "convert" from ImageMagick to produce a bitmap image file for each page, something like convert file.pdf file.jpg Its obscenely resource intensive, but when its done I can just edit the jpg file using whatever bitmap editor. There is a "pdfimages" program with xpdf, but it has often not produced very useful output for me. Larry
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extracting bitmap images from selections? Posted Nov 30, 2004 20:53 UTC (Tue) by smurf (subscriber, #17840) [Link] Ouch. Please, NEVER convert something that is not a continuous-tone picture to JPEG. You will get compression artefacts and it will be either bloated or ugly.
PNG is a better choice. By far.
extracting bitmap images from selections? Posted Dec 1, 2004 4:17 UTC (Wed) by Ross (subscriber, #4065) [Link] Not to mention that JPEG isn't appropriate for editing because the lossycompression artifacts build up every open-edit-save iteration, often at a superlinear rate. Yes, there are such things a lossless JPEGs but they take as much space as any other losslesss format and few programs can be told to write them.
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