MobileRead Forums - View Single Post - I found way to vastly improve displaying of text!

scotty1024 · 10-02-2006, 05:26 PM

Uh folks, if you read scanned PDF's on the iLiad (or Sony Reader) they'll be scaled to fit and not look their best.

If on the other hand you OCR and create the PDF (or work from Baen/Gutenberg sources) the iLiad will use nice crisply generated glyphs.

If you can crop enough margin off to get to 1 to 1 then there will be no scaling of the image (and thus of the glyphs inside the image.)

You can also use my rotate tool to decrease the amount of scaling on scanned PDF's to have them look better as well.

Bi-linear scaling is faster than bi-cubic scaling. Using bi-linear will help improve battery life.

Moral of the story: OCR'd PDF's (e.g. text PDF's) are clearer than non-OCR'd PDF's (e.g. image per page PDF's.)

10-02-2006, 05:26 PM	#4
scotty1024 Banned Posts: 1,300 Karma: 1479 Join Date: Jul 2006 Location: Peoples Republic of Washington Device: Reader / iPhone / Librie / Kindle	Uh folks, if you read scanned PDF's on the iLiad (or Sony Reader) they'll be scaled to fit and not look their best. If on the other hand you OCR and create the PDF (or work from Baen/Gutenberg sources) the iLiad will use nice crisply generated glyphs. If you can crop enough margin off to get to 1 to 1 then there will be no scaling of the image (and thus of the glyphs inside the image.) You can also use my rotate tool to decrease the amount of scaling on scanned PDF's to have them look better as well. Bi-linear scaling is faster than bi-cubic scaling. Using bi-linear will help improve battery life. Moral of the story: OCR'd PDF's (e.g. text PDF's) are clearer than non-OCR'd PDF's (e.g. image per page PDF's.)