"There was an error processing a page. Invalid Function resource."
I've got a PDF file that I'm trying to split up its pages. The resulting page gives the error: "There was an error processing a page. Invalid Function resource." I've looked at each object, and other...
View Articlepassword encryption with 256 bit AES algorithm...???
I have an application for the decryption of pdf passwords for 128 bit Rc4 and 128 AES. In this, i am doing 50 times MD5 using an encryption key. Its working well with this approach. But in case of 256...
View ArticleIdentity-H, CMap and troubles choosing predefined encodings
I'm trying to parse certain pdf document on Mac OS X. The pages have embeded CID () fonts with Identity-H encoding. The font itself is Type0 font with CIDFontType2 descendant font. I'm able to extract...
View ArticleJBIG2 Object Stream - Extract with file header?
Hello, I'm attempting to extract JBIG2 images only from a PDF. The only problem is that the JBIG2 images are raw data streams without a header, and so I can't just save it into a .jb2 file, as no...
View Articlehow to map from cid to unicode
Hello.I'm now trying to convert cid to unicode by using the toUnicode cmap.The toUnicode cmap I extracted is as follows: /CIDInit /ProcSet findresource begin12 dict beginbegincmap/CIDSystemInfo<<...
View Article“Name Dictionary” not found in “document catalog” of PDF
Hi All, I am working with a PDF parser and while parsing a PDF file I found that while reading document catalog of PDF, the "Name Dictionary" which I got is not present in PDF file but When I updated...
View ArticleNeed help understanding operator TJ
I'm having trouble implementing operator TJ in my parser. I've read the PDF32000_2008 documentation, but I'm still confused. The docs for TJ (9.4.3) say "Show one or more text strings, allowing...
View ArticleStandard 14 fonts embedding
Hello, I read several times carefully the table 111 of ISO-32000, and always bear in mind that "Beginning with PDF 1.5, the special treatment given to the standard 14fonts is deprecated. Conforming...
View ArticleAre CR and LF actually critical in some places?
I have two PDF files that are identical except that one has an odd mix of CR, CR-LF, and LF for line breaks, and the other uses CR-LF exclusively (and has the stream lengths, object offsets, etc....
View ArticleStructure of an Embedded TrueType Font
Hi, I read the PDF Reference document and other one about Font Programs.I have a question about the Embedded font program and more precisely about the embedded subset TrueType font program... Does an...
View Articlecompression algorithm working for images in pdf files...????
Someone help me regarding the compression of the images in pdf files....i have little bit knowledge of DCTdecode filter. we can save the compressed chunk of image in .jpeg, .bmp extention..i want to...
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 ArticleIs it possible to find image name in PDF?
Hi,There are times when I have a PDF but do not have the native file from which it is created. I would like to know the name of the images in the PDF.There is a program--PitStop--that I used to use...
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 ArticleHow do I Remove password-encryption in a PDF file
Hello Can anyone help me remove the password encryption on a PDF file? I am trying to submit a PDF file to a on demand printer & they di accept the file if it is password-encrypted. Thanks
View ArticlePreflight errors for PDF/A-1a
We are encountering problems with preflight when we testing documents that use CID fonts with our conversion product . We get the following error messages:CIDSystemInfo and CMap dict not...
View ArticleSecond digital signature invalidates the first one
Hello to all, I'm having some troubles adding a second digital signature to an already digitally signed PDF. The library that I'm using in order to handle the PDFs is an open source one, so I'm...
View ArticleMapping XML data to a PDF template
Hello, I have an application that gets data from a database and merges it with merge fields in a word template via XML. I would like to merge the data to PDF templates instead of Word ones. I have...
View ArticleReading PDF using PHP
Is there any way to read PDFs using PHP? Would appreciate the help. Thanks,Jyotsna
View ArticleExtracting files from Portfolio - problem with outlook email created portfolios
Currently I have developed a plugin that can extract files from portfolios using:- PDNameTree tree = PDDocGetNameTree(pdDoc, ASAtomFromString("EmbeddedFiles"));andPDFileAttachmentFromCosObj But i've...
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