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How do I find the position of a single character on a page?
Hi guys, I am developing a PDFEditor, but am having trouble implementing the code which finds the location of glyph characters on a page (in device space). I have read the pdf reference on Text, but do...
View Articlefile access-restriction: can I set a one-time-access on a pdf file
As a non-expert I would like to know if it's possible to set a limit to the number of times a PDF file can be opened? Thank you and regards.
View Articlehaw i get the last trailer?
i start from the end of the document, then i read the startxref and locate the xref, then i parse the crossrefrence and get the trailer.i dot this operation recursively but when i finish my parse haw...
View ArticleDigital signature Filter / SubFilter
Hi, i have a question regarding the use of digital signatures.As a filter value i am usingPDF32000.bookAdobe.PPKLite but i am not quite sure about the SubFilter. As i understand there are three...
View ArticleCID to Unicode Value
Hi,I've got a new question, that is how could I get the corresponding unicode value if I have only the CID value?Thanks.
View Articleremoving hypertext links from text
Does anyone have experience removing hypertext links from PDF docs?Using MS Word 2003, I have a doc. containing URLs and I am generating a PDF and trying to remove the hypertext link from the URL. In...
View ArticlePDF/VT
Hi all, Anyone aware of good sources with (background) information about PDF/VT (not too technical, but enough to understand the general idea and concept of PDF/VT, the way it is condstructed, so you...
View Articlexref with object number greater than trailer's size value
Hello, a client sent to us a PDF with a strange xref table. Here is what it looks like: xref0 55%% standart xref entries200001 50000052507 00000 n 0000052793 00000 n 0000053079 00000 n 0000053365...
View ArticleSwf in PDF does not play on MAC
We create a PDF(programatically) with SWF embedded in it. Now when the pdf is opened: the SWF plays fine when played on a windows machine but it does not plays (when the PDF is opened) on a MAC. Do you...
View ArticleNeed some help with reading xref table
Hi everyone!I'm trying to understand and parse a compressed acrobat 8 file. For some reasons the xref table is different and I need help to understand how to parse it.The pdf I'm using is this...
View ArticleSCN command
What does the SCN command mean in a PDF file. Example: 0.99608 0 0 scn Thanks,-Lars
View ArticleHow do I replace a text placeholder in PDF files
I tried to replace a placeholder in a pdf file. After I extracted the text and replaced the placeholder with the desired value, I had to rebuild the file, while preserving all formatting. The...
View ArticleBaseFont and FontName must be equals?
I have trouble with an PDF/A document and some readers we are using: - Acrobat (Reader) 9.X works fine- Acrobat (Reader) 6.X and our own inhouse reader have problems I tracked it down to the following...
View ArticleReading a PDF without knowing the stream size
Hi there, while I'm able to successfully read a PDF file, the only way I can do it (based on what I understood from PDF 1.7 specs) is to go to the end of the stream andstart from there (section 7.5.5)....
View ArticleGetting more detailed error messages from Adobe Acrobat
Hi Is there a way to get more detailed error messages from Adobe Acrobat reader when he detecs an error in a PDF file?My program generates PDF files. There is one that throws an error in Acrobat while...
View Articlefile access-restriction: can I set a one-time-access on a pdf file
As a non-expert I would like to know if it's possible to set a limit to the number of times a PDF file can be opened? Thank you and regards.
View ArticleFind the tx position from operator TJ
Hi, I am a beginner in PDF and have read the PDF reference a few times.however, I still have some questions on the positioning of x, y in Operator TJ. Hopefully, there are many masters here that can...
View ArticleXObject - How to use File specification dictionary
Hi all,b Here it is a complete PDF file with just a small picture in the page and it works well (windows XP Professionel SP 2 and Mac 10.3.9)%PDF-1.71 0 obj [/PDF] endobj4 0 obj << /Length...
View ArticleCMaps and ToUnicode CMaps
I'm looking through a couple documents: 5014.CIDFont_Spec.pdf and 5411.ToUnicode.pdf. My ultimate goal is basically text extraction that includes the positions of the characters.So in a CMap file the...
View ArticleHow to compute the font table width?
I'm creating pdfs with my own pdf library using only ArialUnicodeMS.My problem is that characters are drawn overlapped in some cases and I think the problem is in the Glyph Width table.Can you give me...
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