PDF XChange Forum

Timur Born

Since the forum seems to eat posts at the moment, here is what I asked in my last post: Will the new user setting for memory cache also fix the issue of the cache being flushed as soon as 30 seconds after it was built up? And what about the disc cache? In what folder/path is it supposed to be writte...

Timur Born

Thank you, I hope he had a relaxing holidays. That change should hopefully also include a fix for the current bug that flushes cache data as soon as 30 seconds after it has been built up. What about the disc cache, though? What folder/path is cached data supposed to be written to? In my tests it see...

Timur Born

I think you misunderstood. The images are bitmap images and are affected by "Smooth Images". The problem is that sporadically these bitmap images are anti-aliased even when "Smooth Images" is disabled. When this happens then switching "Smooth Images" on and off again do...

Timur Born

Will the crop panel also get standard paper sizes then, like down to A4, letter and the like?

Timur Born

I don't think that this depends on the specific document. Last time it happened with a newly created (printed to PDF) document. Today I tried all three ways of recreating this, printed via X-Change, via Primo and using the internal PDF creation of the software used. None of these reproduced the issu...

Timur Born

I noticed again that image smoothing was enabled in a file. In order to disable it I had to disable "Smooth Line Art" again.

Timur Born

Make sure that your original PDF file does not use Type1 fonts, though, because these are not supported by X-Change printers yet.

Timur Born

I already thought so. No problem.

Timur Born

Yes, you mentioned that in January.

No need to hurry, once I noticed the differences between Medium and High I knew how to work with these. Adobe Acrobat really is on the forefront of OCR nowadays, even beating dedicated OCR applications. But you sure pay a steep price for that (money that is).

Timur Born

He will still have to look into the "Preserve original white spaces" bug for the normal (non edit) text selection tool then. And the presence of this option seems to suggest that there are original white spaces in PDFs?! At least Adobe Reader has no problems copying these.

Timur Born

I noticed the sometimes worse performance of "High" before. Maybe it should either not be offered until fixed or a warning should be issued upon selecting it?

Timur Born

I wonder why OCR adds another (new) image layers on top of the text layer when the option to preserve the original content is used. When I OCR a (scanned) image then I end up with two identical image layers. This seems to have been fixed in the meantime?! Thanks Timur, I was using a different "...

Timur Born

Turns out that this is not a sole issue of Editor, but also of the X-Change Standard printer driver embedding a wrong/unnecessary color profile. The latter of which then is misinterpreted by Editor regardless of Color Management settings or active monitor profile at the time of printing or viewing (...

Timur Born

And of course the RAM cache still should not flush every 30-60 seconds at all. This clearly is a bug.

Timur Born

So is it to be expected that the provided profile renders slightly different (darker) gray tones than Adobe Reader?

Timur Born

I am using single documents for hours on end, needing search over and over again. Sometimes I leave them open while leaving the computer (with or without standby) and then come back to read on. So having the search cache not being flushed without need would very much be appreciated. My computer hard...

Timur Born

I checked the latest version and saw the RAM cache still flushed after 30 seconds and then again after 60 seconds.

Timur Born

One week later I still wonder if this got a bug ticket?

Timur Born

Fixed a rendering issue when image smoothing is disabled. (T# 3975) Thanks for this fix. Curiously I had to disable "Smooth Line Art" at least once in order for "Smooth Images" to be disabled as well (the option was disabled, but image smoothing still happened). Once I did that ...

Timur Born

The Color Management -> Grayscale setting only offers two options on my system: Black & White and Gray Gamma 2.2. Black & White is not B/W at all, but a visibly lighter gray compared to Gray Gamma 2.2. Gray Gamma 2.2 is slighter darker than Adobe Reader DC's rendering. This is not a problem,...

Timur Born

I still miss the easy way of just hitting F1 from inside a dialog window to get a direct overview/explanation of what I am currently looking at. In Editor's Print dialog I can hit F1 all day long or try mouse-overs and will get nothing in return. Then I have to leave the dialog to go to the help men...

Timur Born

The biggest CHM helpfile in my programs folder is 20 mb in size. Modern installers come as a small stub file and then allow the user to chose which parts to download and install.

Timur Born

Will - Tracker Supp wrote:As with most modern applications, we do not offer embedded help, only our online manuals. You can download a PDF manual for each product on the Welcome page of each manual:

Which is a shame for all of those applications.

Timur Born

You can even use different splits in different tabs. And when you close all and then use the "Reopen recently closed documents" function it will only open a single tab of the single document, including the most recently applied split view.

Timur Born

;) I was rather surprised myself, because the documentation specifically states "new window" for this feature. But obviously this behavior is overridden by the preferences for tabs and windows. Quite useful, especially since operations like Undo work in every tab, regardless of where where...

Timur Born

How many tabs do you need? You can get all of them!

Timur Born

Window -> New Document Window

Same document in as many tabs as you like. Tabs are even synchronized, so any edit/change you do in one tab is reflected in the other tabs.

I didn't know this feature existed until just now. Took me some seconds to find out about it.

Timur Born

Feel free to send me a beta version, I do plenty of image extraction.

Timur Born

Until then I will keep using PDFtools to extract all images for those files small enough (that don't include hundreds of images).

Timur Born

Ah, ok. Please take a look at how you implement the image "Copy" (to clipboard) function. Images copied out of Editor appear all white in Paint and Paint.Net, so something about your way of copying images to the clipboard seems off. Not a big deal, since I prefer to use images including tr...

Timur Born

Sasha - Tracker Dev Team wrote:Hello guys,

About image saving/selecting - check out this video:
Cheers,
Alex

I am confused. Weren't these changes meant to appear in the latest update? Will they come in version 6 or only when 7 arrives?

Timur Born

The latest build 322.6 is listed as 322.5 on the website and Editor's updater doesn't find it (at least not my Pro version).

Timur Born

I know your developers are busy writing version 7 and stuff, but I would like to know if this is acknowledged as a bug? I demonstrated that memory cache is flushed as early as 30 seconds after build-up and that no disk I/O for disk cache is happening. This seems like a pretty considerable performanc...

Timur Born

Any results from the discussion? Are the problems I reported handled as bugs?

Timur Born

I think I posterd somewhere that Adobe Reader pre-renders up to 8 pages in the direction you last used, depending on how much idle time you spent on the current page (more pre-rendering if you stay on a page reading, less if you flip quickly). I guess it makes sense to only pre-render one or two pag...

Timur Born

Is this still looked into?

Timur Born

Also take note how in the first screenshot the disk I/O is practically zero (0!) all the time, same as in David's screenshot! Given how little data is written and how infrequently it happens I don't think the data written by the SYSTEM process to temp\PDFXeditor is even cache data. I would also expe...

Timur Born

Same document, 2 minutes later (closed the second unused background tab before building up the cache). See how in the middle of building up the cache (flipping pages via holding cursor key) the cache is flushed to zilch.

Timur Born

Seems that I was wrong concerning the regularity of the flushes. Here is a screenshot where it happens anywhere between 2 minutes and 30 seconds. This time I used two documents and it seems that partial flushes happen where the data of one document is flushed. Anyway, none of these should happen at ...

Timur Born

Pre-rendering of all pages is not possible, I think. That is because either decoding itself, or maybe just the rendering part are calculated and cached for the current zoom setting/page size. One you change zoom all those pre-cached pages would be useless unless you change back to the same zoom sett...

Timur Born

I would have to search for a good True Type example first, since we just learned that Type 1 fonts are always turned to outlines anyway, even when "Bitmap always" is chosen. For Type 1 fonts there is no difference between the two other than "Outline Always" also outlining the one...

Timur Born

First of all: Thanks for the quick reply and for looking into this! :) And how you determine was disc cache used or not? By monitoring using some external program or by disk activity? Yes, like I wrote I monitored disk activity (via Windows Resource Monitor). Editor's disk cache (temp/PDFXeditor) wr...

Timur Born

For better understanding: What information is held in the memory cache, decoded images only or also pre-rendered parts (blocks) of pages?

Timur Born

Indeed they are. And my 30" screen allows several dozen thumbnails to be displayed at once, so reproducing this bug is easy here. ;) Let me underline again that the first 16 thumbnails (8 core / 16 thread CPU) are rendered concurrently, only then Editor begins to render/decode them one by one. ...

Timur Born

I put this in its own thread, because it's more of a bug-report than a discussion: 1. Disc cache It seems that Editor makes no use of its disc cache whatsoever! While it keeps writing to its cache directory (temp\PDFXedit) there are no read operations happening. One could suspect that all disc cache...

Timur Born

The file I sent you is too small to check this properly, I used files of several hundreds pages size. Right after Editor start it also happens when the thumbnail panel starts small and then is pulled bigger, the newly visible thumbnails then are decoded/rendered one by one. Scrolling just one line o...

Timur Born

Thanks for the information, Stefan! This explains the many issues I had with my files, both using Editor and Printer for printing. The workaround for Editor is to use the very useful Launch button and print in Reader until Editor learns Type 1. For Printer I do now understand why fonts printed from ...

Timur Born

I agree with David (and the dev team) concerning pre-rendering. Thumbnails demonstrate that parallel decoding/rendering of multiple pages makes a big difference. Adobe Reader does pre-rendering and for sequential reading this is great. Reader is still slower to flip pages quickly, though. PS: I also...

Timur Born

For clarification: What takes longer, decoding or rendering?

Timur Born

Thanks for the additional information. This convinces me even more that we should be able to switch between rendering mode or maybe Editor should switch automatically based on the context, aka screen resolution and image complexity. DIN A0 sized CAD drawings with JPG backgrounds are regulars around ...

Search found 875 matches