Circular reference in PageTree
I trying to parse page tree of PDF specification (ISO). It seems that there are two page tree nodes with Parent pointing to each other. Here is parser output:DocumentCatalog: /MarkInfo /Marked...
View Articledifferentiating between a text and an image PDF
Hi, I am a total newbie to pdf development. Basically I am working on a MS SQL Server procedure that looks for a specific keyword in the uploaded pdf. The uploaded pdf is stored in a binary column of a...
View ArticleIncremental update on PDF 1.5 xref stream?
I am writing an application to update meta information in PDF images. It is working fine except for PDF files that use cross-reference streams entirely.Here is my latest attempt at updating such a...
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 ArticleIf, then, javascript calculation on pdf form
I have a form with a grid which lists credit cards transaction amounts, with a drop down box for "type of credit" (visa, mastercard, discover). The bottom of the form has 3 different total lines; one...
View ArticlePrinting attachments
I wish to create an 'action' that will print all the attachments. For now, I'll focus on ONE attachment.I can have a "/Launch /Win" that names an external file and calls for Windows to print it. I can...
View ArticleProblems with different fonts
Hi community I want to create a PDF automatically with a Script. All works fine, the pdf is displayed correctly. The only problem is that the titles arent bold. I dont know the problem, the...
View ArticleEncoding of Name Objects
Hi there! I just stumbled over a problem I'm not sure how to handle. It's about handling Name objects with hexadecimal notation. [...]Regular characters that are outside the range EXCLAMATION MARK(21h)...
View ArticleDetermine ICC output profile (name) in PDF/X output intent
Hi all, I have a PDF of which I need to determine the ICC output profile (name) of the PDF/X output intent. This is what I have in the 'content stream': <</Metadata 6 0...
View ArticleProducing signed PDF files without using incremental updates
Hello, I know that, it's possible to sign existing PDF files by adding new objects (such as Signature dictionary) and incrementally modifiying Catalog, Pages objects etc. accordingly. But what about...
View ArticleInverse y axis and text
When we draw in windows the origin is at the upper left point.I tranform it to the lower left with matrix M=[sc, 0, 0, -sc, 0, y] where sc is some scaling and y the height of the window.The result...
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 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 Articlehow to create digital signature
<</ByteRange[ 0 18705 23193 67300] /Contents<00000000000000000000000000000000000000000000000000000000000...
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 ArticleDecode Image Data filtered using flatedecode
Hello All, I am developing a software that will Read PDf File .I am developing my application in VC++.I need to extract images from PDf File,but some images are compressed...
View ArticleHow much PDF is static comparing with PostScript
PostScript is a programming language, and depending on its commands (not output) it consumes resources (Memory and CPU). For example, if we have a blank page with many if statements, PS needs to...
View ArticlePDF legal issues
Hello,Not sure if it is the right forum to ask but here are my questions:The PDF Reference is a copyrighted material. Is it possible to freely quote from the PDF Reference in an online documentation of...
View ArticleUsing CSS to design PDFs
I designed a 10 page document that is created on the fly out of our CRM. It has to be coded in HTML and I used CSS to style it. When a user creates the document, the CSS renders fine except for the...
View ArticleHow to transform PDF to WORD??
I have some PDF file,i want to edit the information in it ..so i should transform the PDF from WORD first ,then i can edit it..hope i can get help from here ..thanks!!!
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