Need 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 Article"To view the full contents of this document..."
Hi All, I am working on a PDF parser and while parsing PDF file I am able to parse the document catalog & cross reference table but when it comes to content I get a message "To view the full...
View ArticleA library to decrypt pdf files
Hi, Does Adobe have any library just to work with pdf encryption. I don't need a full pdf library. All I need to do is to decrypt pdfs (given its password/s). Can you suggest the best way to do...
View Articlecmap for this font is missing
I wrote some code using the following PDF API call encoding = PDSysEncodingCreateFromCMapName(cmapAtom);This throws an exceptionThe CMAP for the existing font is missing or something that...
View ArticleIs it possible to merge two PDF pages into one page?
I have two PDF pages - one is a certificate, the other a logo - that I need to merge into a single one-page document (that is - I want the logo to superimpose over the certificate). Is this possible...
View ArticleLanguage problem
I am using windows 7. Just installed old version of Abdobe Acrobat v5.0 It funcions ok except for the import scan feature comesin foreign language. My computer is set to English and I chose to...
View Articlecan't find Page Tree Nodes？
I have read the pdf reference 1.6 carefully,i have decompress an decode the cross-reference stream.then i try to get the page tree nodes,i can't find it in a pdf of version 1.6for example:I get the...
View ArticleDealing with Predictors when decoding PDFs
I've seen a lot of questions about how to "unpredict" Xref streams. The answer usually goes something like "RTFM!" Well, I have R'd the FM, and it's still complicated. So, to save others the pain I've...
View ArticleHow do we find if the pdf contains transparency objects
Actually i deals with document conversion in this i come across a situation "Transparency in PDF". I need to handle this situaltion differently if PDF contains transparency object, so i have a question...
View ArticleSmall Cap Fonts
I am trying to figure out how to use a small cap font when creating a PDF document manually... for example:7 0 obj<</Type/Font/Name /T5/BaseFont/Helvetica,SmallCap/Subtype/Type1/Encoding...
View ArticleFont Matrix
How does the font matrix affect the current transform matrix? For example, if I have something like this:10 0 0 10 50 50 cmBT/F1 1 Tf18 0 0 18 499 400 Tm(Hello World) TjETDo I multiply the font matrix...
View Articleproblem with Axial Shading
Hi, I'm implementing axial shading for my pdf viewer. I'm using the attached file for testing and it does not look as in Acrobat Reader. The file specifies axial shading with Coords = [0 0 1 0]. This...
View ArticleProblem with JPXDecode / JPEG2000
Hello, I have problems with generating valid PDF using the OpenJPEG 2000 codec. Acrobat immediatly crashing, opening the attached file with FoxIt or Nitro works fine. I've tried different channels (3 /...
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 Articleprogrammatically add button to pdf
Is it possible to programmatically add a submit button and hidden form fields to a PDF?
View ArticleEmbedding of fonts into PDF document
Hello people!I need to create a PDF document that has text in different fonts(Arial Black, Courier New, Lucida Sans etc.) and languages(English, German, Russian etc.).What is the best way to do this?...
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Different font rendering depending on image transparency
Hi,this is a cross-post from the Adobe Reader forum, where no one was able to help me. It is about PDF rendering issues in Acrobat Reader, concerning pdf files created with latex. I would be glad if...
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...
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Formal representation missing items?
The "Formal Representation of PDF 1.7" document from Acrobat X is very interesting, but it appears to be missing a few parts. What is the official status of this document? Advisory? Internal Use?...
View ArticlePDF Encryption: encrypted string with 0x0D gives error in Acrobat.
I am generating enrypted PDF using Standard password security handler with CFM "AESV3" i.e 256-bit AES. The issue is that if encrypted string in the PDF contains byte 0x0D i.e "CR", Acrobat 9/X does...
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