PDF XChange Forum

C++ declaration is PDFXCLIB_API HRESULT PXC_API PXC_SetTextScaling(_PXCContent* content, double scale, double* oldscale); so yours should be Public Declare Function PXC_SetTextLeading Lib "pxclib40.dll" (ByVal content As Long, ByVal Leading As Double, ByRef oldLeading As Double) As Long Di...

Yes, Image compression is dependant on the HBITMAP format, but if the scanner produce 24-bit HBITMAP even when a user selects B&W mode - we can do nothing with this. From an HBITMAP we can create indexed (1 and 8 bit per pixel) and 24-bit images, later they may be converted to monochrome/gray-sc...

As you was told before (in other topic) ther is no convenient way to merge two forms - they may contain fields with same name, may contain alot of scripts that refer to fileds by names (so there will be conflicts), there may be two different submit buttons, so what merged form should do if one of th...

Adobe puts a signature on the file to make the file editable with Adobe Reader. We cannot add such signature because Adobe does not allow this. There is no way to work with the file using any other Viewer and Adobe Reader becuse of the Reader limitaions. If you will use Acrobat instead of Reader - i...

First file (saved using Adobe) contains an Adobe-specific digital signature which allows Adobe Reader to modify the document (without this signature Adobe Reader won't modify the document). Second file (updated by Viewer) also contains this signature, but there were changes and therefore the Reader ...

Hi Joe. Typically we show this warning message when non all pdf objects described in xref tables or streams. In general all pdf objects from document range (from 0 to MaxObjNum ) should be described in xref table (or stream), even some of them are not used (they are marked as free), but for some rea...

Issue was because one of files was broken and this was not correctly handled during save. Now it is fixed, so there should be no more issues with such files. However xcpro has issues with most broken files, which AX can handle. But using xcprto you have much more control during merging and additiona...

Got files and problem is reproduced.
Will fix in next build.

Your file contains a font with an invalid 'ToUnicode' table, which is used to translate codes inside the PDF to unicode characters - at least character '1' is mapped to unicode 0018 (). Further this document is tagged, and this is the reason why Adobe can extract / search for '1' character correctly...

You get correct error code which fully described situation - xref table is invalid. Yes, this mean that your file is broken, and xcpro does not support broken files.

Here is updated file list (may be not complete, but should be enough for your problem). Original file list was not updated since V3, sorry

Actually not only antivirus app's may monitor File Input / Ooutput, but some other programs too. Another possibility - for some reason the OS does not use buffering and send all requests directly to disk. There is alot of small saves, so this also may be a reason for performance degradation. Regardi...

You need to update all dlls at the same time, all of them should have the same build number. Looks like you could have somewhere several different copies and you didn't update all of them. You may use this tool to scan for dlls and see their versions.

There was one change in Read/Write engine, which may cause such behaviour - we changed how files are read/saved. Old builds are using file mapping and have some strabge and rare problems when saving on network drives. New builds use ReadFile/WriteFile routines, which may have no such problems. Of co...

xcpro40 API is almost same as in V3, except fixed bugs and added new possibilities, so this should not limit you - in most cases your code will remain same, except you will want to add support of new encryption method.

Hi, Bhikkhu. Your pdf file does not use original character codes, it use glyph indexes (glyph is set of instructions which describe how to draw a character), so the original text can be obtained only using "reverse" mechanism. This mean that any font in this file has additional information...

If you need draw same image several times (with same zoom) - it will be better to create scaled copy and then draw it. First time this will take a bit longer, but the consecutive drawings would become much faster.
HTH.

Your file contain fonts without ToUnicode table, which is required to extracrt non-ascii text using xcpro40.dll.
This behaviour will be changed in future version (not build!).
HTH.

You have simple workaround - delete not needed pages ad save file with another name.
But do not expect that you can merge two files with form fields - for now form fields cannot be copied or moved from one document to another.
HTH.

Build 189 is avail and it should fix this issue.
Please check and coem back with testing results.

You should use any suitable functions to create another pdf file with additional content (PXC_TextOut or PXC_DrawTextExW to place text to required position, ans so on), and then use PXCp_PlaceContents to place created pdf file over existing content, as you read before.

I still think the user should be given the option to disable "Print Text as Curves," so that font embedding is an alternative option. Sorry, but printing text as text is more complex task than printing text as curves (PDF may contain embedded fonts, which cannot be used for printing witho...

Current v2.5 beta (build 188) does not include required fix, it will be avail with next build (189).

If there is such difference problem may be with a PDF file, placing watermark as foreground may depend on page content. However this should be not PC specific ... Can you make additional check with your files? And if there is file where placing watermark make it invisible - please provide original f...

Here is some suggestions what can be done:
1. Check dll versions on PC where code is not working. All dll should have same version.
2. Check if there is other copies of dlls somewhere on PC (you may use tool decribed in this topic).
3. Try to use common font like Arial.

Can you provide PXCp_... function call sequence to reproduce corruption? Looks like there is problem with specific files(s) and call sequence. File for testing I already have :) And will se what can be done to handle already corrupted files (Viewer has completely different and more advanced code to ...

Have tested on my PC, all work as expected, except file was not created if I pass invalid path to Viewer.
Can you say what is different on user PC and your development machine?

Reference present in both files, orginal file contain referenced object, merged - no (but reference remains there, and this is why it cannot be processed using xcpro40).

Strange behaviour. Resulting document contain reference to non-existing object (PDFCreactiveX), and it is strange that this object was not saved.
Can you provide sample code which help us reproduce such problem?

Your example is incomplete, so we cannot say where the problem actually is. Are you sure that you handle all cases where PXCp_... functions may return unexpected results? We will need more information before we can help. Regarding dlls - you have only missed the fm40tiff.dll one (responsible for loa...

There is no simple way to convert existing PDF to PDF-A format - it must be at least verified, and if needed - corrected (in most cases correction is required). For now only PXCLIB40 can create PDF-A/1b compliant files, and you should call PXC_NewDocumentEx with PDFA_1b parameter. Driver also can cr...

Hi Henri.
Does any other application can differentiate which mouse is used? AFAIK all applications (and the OS too) use all mice as one, so if you try to move two of them at same time you get a funny result.

Sorry, but current realization does not allow checking password after it was set (and yes, for documents with emty owner or user password emty password is set automatically when opening).

There is no guarentee than text from a pdf file will be send to printer as text. For now pxcview.dll can try to render text as text when the font is not embedded and one of system fonts is used for substitution or when the embedded font is TTF. Otherwise text will be rendered as curves. And even in ...

Please make sure that you not using build 56 - there is a known issue with Viewer lockup in this build. Build 57 is available and it fixes this issue.

Hi Matt. 64-bit Portable version does not exist and I'm affraid that it will be released only when everyone will use 64-bit version of Windows (32-bit app can be run on 64-bit OS, but not vice versa). However you may try do following - install 64-bit version of Viewer and replace PDFXCview.exe in po...

Please do following: 1. Run the portable version. 2. Make sure that the checkbox for "Restore last session when application starts" is checked. 3. Open several documents. 4. Close Viewer. 5. Send your settings.dat file to lazycat@tracker-software.com (do not post it on forum because it con...

One more suggestion: can you try to use portable version? It does not store settings into registry, so this may help us to locate where problem is...

available here :

www.tracker-software.com/PDFX_Vwr_Port.zip

Thanks.

You can use PXCV_Err_FormatSeverity, PXCV_Err_FormatFacility, and PXCV_Err_FormatErrorCode function to get description of the error, even it not listed in help files, and use of these functions is strongly recommended. 0x821403e8 = [PDF Structure 40] Insufficient memory If this information does not ...

Best solution for your purposes is to use portable version from flash drive. Check "Restore last used Layout and Zoom settings for pages from the Recent List when opening" option and portable version will remember all settings include position in file on flash drive. But there is one limit...

Freeze is reproduced, but not crash. It is a bit differen behaviour, but also not good

This problem is already reported and fixed, but fix will be avail with version 2.5 coming soon.

Hi Pavman. Cannot reproduce crash with your file, sorry. Do you have any instructions what to do to reproduce it? Also I can save your document using Acrobat 9.3.4 with no errors. And yes, your document contains incorrect record in pages tree (where all pages in PDF file are described), this is why ...

Does € character display correctly on same PC where it cannot be printed? Which applications do you use to view/print pdfs?
Also, providing sample file will be very helpfull. If you cannot attach it here - please send it to lazycat@tracker-software.com with link to this topic in message body.

Hi Giovanni. There is no such function and it is not planned to it in nearest future (in most cases replacing font in pdf file may make part of text ugly or even unreadable). However if you are familar with PDF you may use Low-Level API from xcpro40 to do this (but there is chance to get unacceptabl...

I'm affraid that without file we cannot help. Can you send it to support@pdf-xchange.com with link to this topic in message body? And please archive it before sending (to reduce file size and maintain it integrity).

Sorry, but commenting files using Adobe Reader is Adobe-specific featue. Adobe Reader allow commenting only if document is digitally signed using their own certificate. So document must be created using one of Adobe products with special permissions set. Documents created (or modified) using any thi...

PDF files does NOT include any CL/LF characters, in most cases does not include Tab character and often does not include space characters. so any addition of such characters is heuristic and programs may add them in different way. PDF Tools can extract text from page as plain text (adding spaces may...

There is two suspicious things on your PC config: 1. 2 Gb of RAM may be not enough for all aplications and OS, so swapping may downgrade performance. xcpro40.dll keep all data in memory and may use up to 2Gb of RAM. 2. Some SSD may downgrade performance when there is alot save operations with small ...

Hi Giovanni. Your code looks good, so it is hard to recommend some changes in your code. Do you have any AV software runnig? If yes - please try to disable it and test again. And please notify us about result. Can you make some test application (or special build of existing one) and send it to us wi...

You need portable version, not copy of installed one. Portable version does not interact with registry on user's PC, does not modify association, etc. Also you may customize Viewer settings and it will start with them each time when it is run. For example you may customize toolbars, open several fil...

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