Flate decoding
I have a stream that looks approximately like the following. It's supposed to be an XrefStm but my flate decoder is decoding this stream into a bunch of ascii control characters. I'm using xceed to...
View ArticleIncremental update for linearized files
Hi,how does incremental update work on linearized pdf files?I've applied it in the normal way but it doesn't work :(any help is appreciated
View ArticleArabic - ToUnicode Map incorrect?
I am trying to convert the following string of characters from a content stream:<br /><br />f3 6a 47 52 20 f8 48 20 b4 47 f5 67 20 e1 b0 53 c9 46 f4 48<br /><br />into unicode...
View ArticleProblem with Embedded Files/Collections
I have written a Pdf file (fragments below) to act a container to other pdf's. Initialy it all looks good, however when I click on the embedded file inside Acrobat Reader instead of displaying the...
View ArticleExtract embedded xml from PDF/A-3b (also creation)
Hello there, in the context of a research project, we are currently trying to extract embedded xml from a PDF/A-3b document via code.The project deals with establishing a new invoicing standard...
View ArticleWhy have a default user password feauture?
Hi, I (understood) read in the manual that there could be a default user password - 28 BF 4E 5E 4E 75 8A 41 64 00 4E 56 FF FA 01 082E 2E 00 B6 D0 68 3E 80 2F 0C A9 FE 64 53 69 7A. If the file is...
View ArticleEmbedding Truetype fonts into PDF Document
Hi all, I have a question for you : I have a class in VB6 to make my PDF documents,with this class i have the possibility to enter text of Type 1 and text of Truetype fonts in the PDF Document, by the...
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 ArticleFDF no longer works in Reader 10.1.1. Worked in 9.x and previous
I have a web app that was developed many years ago to serve PDF "templates" with user data inserted into it's forms via FDF. Up until Adobe Reader 10.1.1 (currently testing with this version, possibly...
View ArticleWhat are the permitted compression techniques for PDF/A-1?
The PDF/A-1 standard does not specify how compression is performed. What are the permitted compression techniques for PDF/A-1? The information I have gathered (not sure if all are true) LZW should not...
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 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 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 ArticleSecure PDF using certificate
Hi All,I'm developing a secure PDF using certificate.When I open the PDF I get acrobat security saying " A digital ID was used to encrypt this document but no digital ID is present to decrypt it.Make...
View ArticlePDF debugging tools?
Are there any pdf "debugging" tools available, and if, what are they called? When trying to generate some PDF-files from scratch it is sometimes quite a bit of work trying to figure out where the...
View ArticleReading PDF using PHP
Is there any way to read PDFs using PHP? Would appreciate the help. Thanks,Jyotsna
View ArticleHow can I check text rotation when extracting text from pdf file?
If there are rotated text in pdf file how can I detect this rotation in the output stream??
View ArticleCreating a PDF viewable online?
Hi all.Is there any way to create a pdf, post it online and have others remotely view it through their browsers? For example, I need to pdf a lengthy InDesign document which will make the file rather...
View ArticleProgrammatically search for a word in PDF file
In the program I am developing, I am opening up a PDF file from the application. Is there any way to search for a particular word in the PDF file and move to the page containing the first occurance of...
View ArticleXRef Stream
I've noticed that the new cross reference stream isn't as nice to me as the 1.4 version. I've deflated the stream and don't make too much sense of how to get my object file offsets. Here is my...
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