Acrobat pixel doubling problem

axim4hiking · 04-10-07, 04:03 PM

I have researched this & found the ad nauseam posts referencing it, but I haven't seen a clear solution to the Acrobat pixel doubling issue. Most of the threads appear to be VGA related & not Adobe Acrobat specific.

I have a X51v/A12 with Acrobat 2.0 loaded & am trying to read some detailed documentation that I created with ABBYY FineReader 8.0. When I look at the pdf's, no matter whether I zoom in or turn off reflow I get what has been referred to as pixel doubling. I have tried the mui VGA trick, but I that didn't work. I then tried the MvRTrueVGA software & it works, but that didn't affect the pixel effects. What is sad is that as I look at the documents, I see it initially get written to the screen & it looks good. As soon as the screen fill is done Acrobat then redraws the text with pixel doubling and it looks like crap (to the point of being unreadable at normal zoom).

I have tried pocketXpdf, but it can't handle large files. Has anyone figured out how to turn this annoying feature(and I use that term loosely) off?

psionandy · 04-10-07, 04:10 PM

Tweaks2k will do the mui trick for you

axim4hiking · 04-10-07, 05:06 PM

Originally Posted by psionandy

Tweaks2k will do the mui trick for you

I'm sure it would, but again, this is not a VGA issue. I can do VGA, but that didn't help. I am trying to correct the behavior of Acrobat so that it does not change the appearance of my PDFs. The haphazard doubling of the pixels makes my PDFs nearly unreadable.

Box · 04-10-07, 05:12 PM

You could try Xpdf or other pdf software to see if it works better.

psionandy · 04-10-07, 05:14 PM

Then your definition of 'pixel doubling' is different to everyone else's.

the reason pixels are doubled is its using twice as many in qvga as vga hence the fuzzyness

Post some screenshots

axim4hiking · 04-10-07, 05:52 PM

Box: Thanks for the suggestion but as I said in my original post Xpdf wont open the files in QVGA or VGA. IIRC, Xpdf has problems with large files & these are between 2-12Megs.

Since the question of doubling came up as a result of QVGA mode, I used toggleVGA (MvRTrueVGA) to switch to VGA mode. While resolution is now higher the results are the same.

BUT...I realized the effect only happens when I turn reflow off. During the initial screen draw in any zoom level both text & images are drawn as they should be. Once the first screen draw is done the redraw starts at the top again & turns everything to crap. The effect is like looking at an original and then having the document faxed several times. The doc is a poor, pixelated copy of the original. My originals do not suffer from this on my PC at any zoom level.

Unfortunately I do not have any capture software setup to grab a screen and I am not sure it would help, as the problem only occurs after the 2nd screen draw. I guess my question now is: what is it about turning reflow off that screws everything up & causes acrobat to try to "fix" the screen (both text & images)?