Unicode Passwords
Hi, I wonder how acrobat handles a password that contains unicode characters when generating an encryption key. That is, what byte representation (i.e. encoding of the password string) is used, before...
View ArticleProblem while opening password protected PDF with Macintosh OS preview
Hi, We have created passowrd protetced PDF (using inetsoft) and to open this PDF we need Adobe Reder 6.0 version onwards.Now when i open this pdf file with Macintosh Operating system without installing...
View ArticleColors in PDF
I am "experimenting" a little with colors in a PDF file.In the file I create two squares. The first square is colored using DeviceCMYK.The second square has the same color as the first one, but using...
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Type1 font missing glyph width from /Widths array
Hi everyone I am trying to calculate character width in order to show highlighted search results in a PDF document. The problem I have faced is that the /Widths array I am depending on has a portion of...
View ArticleUsage Rights question
Hi, I'm working on a product which allows to generate PDF files. One of our customers has asked about enabling Usage Rights in Abode Reader for the generated documents. So I'm currently investigating...
View ArticleNot enough bytes in image stream
Hi I'm developing a program that reads/modifies/saves PDF files. I found a strange imagestream in the PDFReference Document: 2385 0 obj<</Length 255/Filter /FlateDecode/Width 155/Height...
View ArticleHow does PDF convert CMYK to RGB?
Hi I want to know the formula that PDF uses to convert DeviceCMYK to DeviceRGB values. It seems that Photoshop and PDF uses the same forula, where the other Programs use the "normal" formula, which can...
View ArticleHow do I display a page in a different rotation from when printing?
I am in charge of a LaTeX thesis template and I am attempting to handle a requirement where some pages must be rotated into landscape. However, some of the landscape pages must be rotated 90 degrees...
View ArticleUnicode font support in PDF
I'm trying to come up with a time estimate on supporting Unicode fonts in PDF. The code I have generates PDFs fine for non-Unicode fonts and text already, and I've seen quotes elsewhere on this forum...
View ArticleRescaling a PDF document's dimensions?
I'm wondering how complicated it would be to take an existing PDF (just a single page) and redefine its dimensions, thereby rescaling the dimensions of everything in it in one fell swoop? That is to...
View ArticleImage with Soft mask inside form XObject (no Group entry)- PDF1.4 only
Hi, I have a question with respeect to the PDF Reference 1.4 specification only, and not the later versions. Supposing I have a form XObject that does not have a Group entry. Then the spec says that...
View ArticleField does not get POST to server when empty? why?
I have a PDF file with a Text Box as fillable text box and a submit button. When user clicks submit button adobe reader sends the fillable data in XFDF format to server. If text box has value then the...
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Pdf text extract problem with CID font and Identity-H
Hi all, Iam facing some big problem with text extraction from pdf file.Currently iam using congviews pdf2xl text extraction tool.About 95% of the text extract correcly but few charaters showing box...
View Article"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 ArticleProgramatically Adding Layers
I have just started reading ISO 32000, and I have a newbie question. Is it feasably possible to add a layer to a pdf page? Specifically, what I want to do is programatically, in a custom application,...
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 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 ArticleTTF fonts Postscript names
Hi! I got a problem in using non-embedded TTF fonts while using Zend_Pdf PDF manipulation library. E.g. if I'm using 'Arial Unicode MS' (which is supplied with Microsoft Office) I see exactly 'Arial...
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...
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