MobileRead Forums - View Single Post

nirious · 08-24-2011, 06:07 PM

I tried loading it at work using the gnome fedora document viewer. and it opened it ok.
as did the adobe reader in windows.

The thing I noticed is that this ebook is actually a very poor scan.
I can tell when I zoom into the text.
Also the text (even in the desktop viewers is not black as in other pdfs but rather in tints of gray, with in some places even little white dots in the characters themselves)

the ebook readers on my pc actually do a pretty fine job of upscaling the text using some on the fly ocr or something.

I mean , when I load a page all text start blurry and than suddenly becomes sharper.

Also, when I use the text select tool, the selected text becomes much sharper and is not exactly but a very similar font.

Or also when I select certain parts of words, the selection already shows the next character (though correct) when the cursus is not yet there, if you know what I mean.
Like, I select "abc"(cursor is richt after "c") in "abcdefgh" and the highlighted part already shows "abcde" (which is correct)

also tried printing the book , but the print quality is really poor. (it is like when you print copy the same page over and over again in a copier)

Also when I try to reprint the book using a pdf printer or a pdf to djvu or xps or epub converter, it failes after a couple of pages.

@abijah:
Actually I already tryed the other viewer on my reader:

adobe viewer :
it just shows empty pages
but it responds rapidly going to the "next" page (you can see the page index increase)

pdf viewer :
this is the one showing the blocks
though the rendering of a page takes about 10 times longer ( about 10 seconds)

08-24-2011, 06:07 PM	#5
nirious Junior Member Posts: 8 Karma: 10 Join Date: Aug 2011 Device: pocketbook pro 903	I tried loading it at work using the gnome fedora document viewer. and it opened it ok. as did the adobe reader in windows. The thing I noticed is that this ebook is actually a very poor scan. I can tell when I zoom into the text. Also the text (even in the desktop viewers is not black as in other pdfs but rather in tints of gray, with in some places even little white dots in the characters themselves) the ebook readers on my pc actually do a pretty fine job of upscaling the text using some on the fly ocr or something. I mean , when I load a page all text start blurry and than suddenly becomes sharper. Also, when I use the text select tool, the selected text becomes much sharper and is not exactly but a very similar font. Or also when I select certain parts of words, the selection already shows the next character (though correct) when the cursus is not yet there, if you know what I mean. Like, I select "abc"(cursor is richt after "c") in "abcdefgh" and the highlighted part already shows "abcde" (which is correct) also tried printing the book , but the print quality is really poor. (it is like when you print copy the same page over and over again in a copier) Also when I try to reprint the book using a pdf printer or a pdf to djvu or xps or epub converter, it failes after a couple of pages. @abijah: Actually I already tryed the other viewer on my reader: adobe viewer : it just shows empty pages but it responds rapidly going to the "next" page (you can see the page index increase) pdf viewer : this is the one showing the blocks though the rendering of a page takes about 10 times longer ( about 10 seconds)