MobileRead Forums - View Single Post - 4 bit gray-scale images to PDF: a need software

SalvaG · 12-08-2009, 01:58 PM

Hi, I've been using Adobe Acrobat to create PDF's from scanned images (converted to 4 bits with Photoshop), but I've recently discovered that when I use the feature "Optimize Scanned PDF", images are converted to 8 bits, and the resulting PDF has a bigger size.

So I need a software that features a filter like that from Acrobat (deskew, despeckle, etc to facilitate compression) but supporting 4 bit images, or an alternative software, or a stand alone filter.

Thank you

12-08-2009, 01:58 PM	#1
SalvaG Enthusiast Posts: 39 Karma: 54 Join Date: May 2009 Location: Spain Device: Kindle DX	4 bit gray-scale images to PDF: needed software Hi, I've been using Adobe Acrobat to create PDF's from scanned images (converted to 4 bits with Photoshop), but I've recently discovered that when I use the feature "Optimize Scanned PDF", images are converted to 8 bits, and the resulting PDF has a bigger size. So I need a software that features a filter like that from Acrobat (deskew, despeckle, etc to facilitate compression) but supporting 4 bit images, or an alternative software, or a stand alone filter. Thank you Last edited by SalvaG; 12-08-2009 at 02:20 PM.