PDF XChange Forum

Sorry, but you cannot use pdf object numbers to identify annotations or something else after PDF file was changed - most programs may change object numbers when saving document, it is not restricted. For example we have document with 10 000 pages - this will require at least 20 000 specified objects...

Almost always this happens when printer drivers do not interpret fonts from PDF files correctly. There is no common solution (at least for now), but there are two possible workarounds: 1. Check the Print as Images option in the print dialog or 2. Press the Advanced button (in the print dialog as wel...

Problem is in PDF file (and in the PDF creator used too) - it uses non-standard encoding and does not specify the parameters etc it is using ! In such cases the font must be embedded and built-in encoding used. On my PC there is no Shadow font and both our Viewer and Adobe Acrobat display blank page...

It looks like you have problems with system resources: error -2081161208 was returned from the system and means "Not enough storage is available to process this command". There may be several issues with merging alot of files into one: 1. xcpro was not designed for such heavy load and ther...

Sorry, we cannot reproduce crash with latest build (199 at the moment).
Please try update and if problem remains - please provide step-by-step instructions how to reproduce it (best case - test project with sources).

Hi, This file is broken (the xref table is incorrect) and I am afraid that the xcpro40.dll library can work only with in tact files - correctly formatted. I assume this is a one of file - if you have multiple files such as this you may want to contact the source and advise them - also opening in our...

This is because your file contain incorrectly embedded fonts - they are Type 1, but embedded as TrueType. For now Viewer cannot correctly handle such situation and therefore use sytem fonts for substitution.

Coorect code should be: HRESULT hr ; typedef _PXCImage* _PXCImagePtr; _PXCImagePtr* pImages = NULL; // get pagecount DWORD PageCount = 0; hr = PXC_AddImageExA(pdf, ImageFileName, NULL, 0); ASSERT ( !IS_DS_FAILED(hr)); PageCount = hr; ASSERT(PageCount > 0 ); // alloc image array pImages = new _PXCIma...

You sould be more creaful with pointers - this is second time when you added unnecessary '&': HRESULT hr ; _PXCImage* pImages = NULL; // get pagecount DWORD PageCount = 0; hr = PXC_AddImageExA(pdf, ImageFileName, NULL, 0); ASSERT ( !IS_DS_FAILED(hr)); PageCount = hr; ASSERT(PageCount > 0 ); // a...

This is hybrid document - document produced using a recent update to the PDF specification (e.g. features like compressed objects and xref streams, added in spec. version 1.5), but with PARTIAL compatibility with older readers which do not understand these new features. Therefore this file reports t...

There is nothing specific in your settings, unless the client PC has 256Mb of RAM or less - in this case 10% is not enough for effective caching. Possible connection between annotaions and sections is Comments Pane - when it is opened it starts to enumurate comments on all pages. Of cource there sho...

One possible problem - your client has really slow network. It may be bandwith problem or even high latency problem (settings are read using small block size, so it also may be a problem). But in most cases Settings are not so big, so it should not case such serious slowdown. Maybe user also open so...

Object 30 in this file is corrupted (it is an image streamwith an invalid length).
xcpro supports only correct PDF files, so it cannot work with this one. There is only one way to work with this file is to correct it - re-save using Viewer/Acrobat/etc.
HTH.

Almost same - another encoding of same kind.

Currently the xcpro40 Library can handle such fonts only if the 'ToUnicode' table is embedded with it.

Your file use embedded font(s) with built-in encoding and does not provide any information how to translate codes to unicodes - this is a reson why we cannot extract correct (greek) text. Adobe Acrobat also cannot extract text correctly. possible solution - recreate document with required informatio...

Reproduced and fixed.
Fix will be avail in next build (200).

Looks like version of Shlwapi.dll in your system was lower than 4.71 and therefore was problems when calling StrStrIW (function StrStrIW require Shlwapi.dll version 4.71 or later). After updating IE to version 6 Shlwapi.dll was updated as well and this resolved problem. Sorry that we frogot about th...

All what you wrote is true, BUT you missed that there are TWO examples which use the same pxcview.dll - pxcview36_sample_app.exe and PXCView36_sample_csharp.exe . pxcview36_sample_app.exe does not use .NET and can print FAILS_TO_PRINT.pdf . PXCView36_sample_csharp.exe use .NET and cannot print FAILS...

pxcview36_sample_app.exe uses pxcview.dll and can print. It does NOT use .NET. So the problem is not in the pxcview.dll. PDFXCview.exe can also print and does NOT use .NET (even our .NET samples use the Viewer AX. The actual printing is done in another process which does not use .NET itself). So ple...

Then you will need to optimize it. This is just a sample, without any optimizations - as I can see there are a lot of memory allocation/deallocation operations (two per each text element), this may be a bottleneck. Also, xcpro compose text inside, without making copies as PXCp_ET_GetElement does, so...

Problem is because your file contain fonts with non-standard encodings, so xcpro cannot correctly determine characters widths (especially space width) and therefore cannot compose letters correctly (yes, in this document each letter is displayed separately, so text composing is not so simple). I'm a...

That is strange. Can you post code which is used for drawing?

pxcview.dll does not cache rendered page, but it cache internal PDF structure, decoded images, etc. PXCV_ReleasePageCachedData may releae them, so on each draw they will be decoded. Which parameters are you passing to PXCV_ReleasePageCachedData and how often do you call it?

Hi Christina. I'm affraid that there is not so many possibilities to speedup, but you may try to do following: 1. Rewrite your code to use several threads (best case - one thread per CPU core). If you have quad-core CPU you will get up to four times the speed. 2. Disable your antivirus/firewall (and...

Sorry, but links to external files will be not automatically converted to local when you are inserting that file to original (why does xcpro do this? It may not even know which pages from which file you are trying to insert). At the moment we do not provide functions to modify annotations (a link is...

Can you be more specific about your conversion process? Are you converting one tiff file to one pdf or multiple tiff to one file? And what exactly happens when you try to convert 2500 files?
Also, please make sure that you are using latest build (195 at the moment)

1. Your document corrupted, so it may be incorrectly displayed. 2. In your document used fonts are not embedded, so text may display incorretly - depends on fonts present in PC where it will be Viewed. 3. Your document use non-standard font names (local chineese insted of Unicode). Viewer doe not su...

You can get all text from page (without positions) or each element with positions - same as in PDF content. Yes, in most cases words in PDF are splitted, and we do not provide mechanism to collate word fragments because there is alot of specific cases which require separate handling - text on curves...

Hi lgitlitz.

Can you also do following test: copy file to your PC and open it locally?

Also, what type of LAN you are using? Local ethernet, VPN, or another configuration?

No. The current version of Viewer can use only system fonts for substitution.

I suggest a much better solution - embed the fonts in the document, so it will look the same on any computer.

What you're saying is not so in our case. To create the TIFF file, we create a monchrome bitmap, select it into the DC, draw and save it as a TIFF file. There's no 32 bit bitmap. You do not create such a bitmap, but we create for internal usage, and this is true (I'm developer of that code, so trus...

Sorry, but the internal representation uses 32 bit's per pixel, not one, so the internal buffer uses 732 MBytes and they are stored on harddrive.

You may do an easy test - use 150 DPI instead of 400 and see whether the performance will be reduced or not.

I think problem is in size - your image require 732 MBytes to be generated as HBITMAP, regardless TIFF format, and internal representation will use temporary file to keep such large data (instead of memory), and this may seriously degrade performance in case when two or more threads work with harddr...

johnr@etakeoff.com wrote:the different threads don't work on the same document simultaneously

That's strange, in such case there should be no problems described above. Can you provide one or more typical files which you process and say typical bitmap dimentions?

Hi John. pxcview was not specially designed to work with the same document using several threads, using several documents in different threads is completely safe. You may work with the same document in several threads, but with serious restrictions: do not call PXCV_ReleasePageCachedData , PXCV_Rele...

Your file uses non-standard extensions for CJK fonts. It is not documented in PDF specification and cannot be used on any computer with a different OS locale (therefore we cannot see normal text here even in Acrobat - our OS are not chinese and have no corresponding fonts, both things are important)...

Your document's use multibyte encodings which is not currently supported by xcpro40. Please wait for next major update.

Hi. No, there is no way to downscale images without loosing quality, even in theory - because of the nature of scaling. Regarding your situation - PXC_ScaleImage must convert the image to an 8 bit per channel representation in order to use bilinear scaling, so after scaling you may get 24 bit per pi...

Hi. It is impossible to do as you described (not so simply), but a bit more complex solution is possible. You will need xcpro40 for text extraction and page dimentions and pxcview.dll to get rasterized page with required DPI. All you should do is process each page in PDF using following sequence: 1....

Sorry, portable version does not support file associations - because it is portable. Of course you may set file associations manually (using "Open With ..." from context menu in windows explorer), but portable version also does not support browser plug-ins. To manage file associations by V...

Sorry, this is not allowed by PDF specification.
Using password protection you can block document reading (until password supplied) and/or restrict some modifications (but for all same objects in document, so you cannot protect one annotation and not protect other).

Regarding to PDF specification file version should be declared at the begining of file like %PDF-1.4 in your case. But later Adobe decided that it can be updated in document catalog ( /Version/1.5 in your case). Primary concern of such update - modifting document using incremental update (in this ca...

Did you see this topic? It is not so far from your and I almost sure that you have same problem as described there.

If this is not so in your case - we will need sample files that fail to laod and a complete llist of libraries which you are using (including version numbers).

Sorry, but your file cannot be recovered - it contains a lot of broken objects and most pdf document information is missing. Looks like the recovery toll you used was not quite successful with restoring this file.

Hi Jeff.
Looks like fm40base.dll is missing (it must be located in same folder as ixclib40.dll) - it is required to support jpeg, png and may other formats except bmp (bilt-in support in ixclib40.dll) and tiff (requires fm40tiff.dll).
HTH.

You posted on wrong forum - this is end-user forum, for people who using PDF-Tools (Wizard), not SDK. :) We use standard Read/Write file routines using the Windows API, so windows caching is in effect, and we have no control over this (to bypass cache is not an option because of performance degradat...

Just to make sure I am fulling understanding this, if I am just using your PDF-Viewer program, goto file menu, document properties and on the document properties dialog, select security, and password security. In the Passwords and Permissions dialog, where I am asked for a Password to open the docu...

Hi DSSavant. Did you COMPLETELY read and undersand my comments about WM_QUERYENDSESSION and how it is working? I think not... Let's see whats going on: We have two applications - Yours (1) and theViewer (2). Yes, we have two applications, Viewer AX reside in separate process. When a user selects log...

A PDF file has two passwords - one for opening and the second for changing permissions. If either of them is blank - you can open PDF file without a password. Your trying to set an open password, but the permissions password is empty. You should do one of following: 1. Set both password to the same ...

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