MobileRead Forums - View Single Post

Elfwreck · 02-18-2010, 01:39 PM

Acrobat itself doesn't have a way to do this (that I know of); there are plugins that will. Quite A Box Of Tricks will adjust DPI, but it's not a cheap plugin.

FineReader should let you export with a choice of DPI options; you should be able to re-output the pages with different settings. (Or, hrm, the difference happens when they get loaded *into* FR; you need the images going into FR to be the right resolution.)

You should be able to save out/extract JPGs from a PDF with your choice of resolution. (You can in Acrobat 7; I don't remember if you can in 4.) Otherwise, save out the pages and then adjust the DPI with another program--maybe Photoshop (not free), GIMP (free, complex), or Irfanview (free, simple).

02-18-2010, 01:39 PM	#4
Elfwreck Grand Sorcerer Posts: 5,187 Karma: 25133758 Join Date: Nov 2008 Location: SF Bay Area, California, USA Device: Pocketbook Touch HD3 (Past: Kobo Mini, PEZ, PRS-505, Clié)	Acrobat itself doesn't have a way to do this (that I know of); there are plugins that will. Quite A Box Of Tricks will adjust DPI, but it's not a cheap plugin. FineReader should let you export with a choice of DPI options; you should be able to re-output the pages with different settings. (Or, hrm, the difference happens when they get loaded into FR; you need the images going into FR to be the right resolution.) You should be able to save out/extract JPGs from a PDF with your choice of resolution. (You can in Acrobat 7; I don't remember if you can in 4.) Otherwise, save out the pages and then adjust the DPI with another program--maybe Photoshop (not free), GIMP (free, complex), or Irfanview (free, simple).