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Is it possible to control the height of the Portfolio panel via the PDF...
Hi All, Is it possible to embed into a PDF Portfolio kind of a directive to Adobe Acrobat Reader what should be the height of the Portfolio panel (red line on the image below)? The idea, basically, is...
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 ArticleHow to find decoder name from decoded stream?
Hey, 177 0 obj^M<</Length 110 /Filter /FlateDecode >>^Mstream^Mx<9c>3´Ô30P0^@^Q<86> B^WÂ4^C<91>Fæ 2ÅP¡^P"^@Q^G#Á²^P]0¡ä\^E'O^Eýp...
View ArticlePrefixes for embedded subset fonts
The specification says that embedded subset fonts must have their names prefixed with six uppercase letters plus "+". For example ACBCDEF+Arial. In every PDF document I look at, the six characters are...
View ArticleAutomatically scaling/sizing a PDF file
I support a web-based application that includes a query tool which allows the user to generate a PDF file from the query results. The PDF file is generated in landscape orientation and contains several...
View ArticleAppearance state (AS) vs. value (V) of Button Form Fields
It all started with a PDF where the state of the checkboxes was visually different from our viewer to the acrobat reader.After some investigation the problem was a different state of the /V and the /AS...
View ArticleCID to Unicode Value
Hi,I've got a new question, that is how could I get the corresponding unicode value if I have only the CID value?Thanks.
View ArticlePrediction & 4 bitsperpixel in flatedecode filter
Hi,I have an CMYK image which is flatedecoded, predictor is 15 & there are 4 bits per component. Can someone tell me how do I decode this stream properly? What is the correct oreder of...
View ArticleChange PDF Creation Date
I've got a folder full of old PDF files at work. They are all labeled DD-MM-YY to signify the date they were made but the pdf's were originally in Word format and when they were all converted to PDF's,...
View ArticlePDF with white text, or not?
OK, so I have and PDF file with some white text according to my own programm, and it seems to be set to overprinting.I have asked about this subject before, but failed to make myself clear enough. This...
View ArticleHow can I write inline image in PDF file?
Hi All, I am writing an image as inline in the PDF file but the output is blank. I wrote other elements like text, lines and rectangles and they seem to output fine. I have attached the PDF file for...
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 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 ArticleHelp with pdf text extraction
Hello, i have problems extracting text from one pdf file.All other pdf works fine (tested on 100+ files), but this one fails since my parser can't find BT ET Tj etc... tagsBut there are lot of texts,...
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 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 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 ArticlePlease, help with Incremental Update for Linearized document.
Hi, here is my problem.I'm working in my own annotation app. It incrementally updates pdfs. Works fine with most of the pdfs.But i've found couple of pdfs, that was being corrupted after updating. Here...
View Articlehow to insert png to pdf?
I have readed the pdf reference 1.6,i want to insert png to pdf.i konw that the png consits of alpha and RGB,31 0 obj<</BitsPerComponent 8/ColorSpace/DeviceRGB/Filter/DCTDecode/Height 154/Length...
View ArticleHP Harlequin rips generating error processing PDF file
Hi all,I'm a programmer for a company that prints books based on customer uploaded data that we use to generate PDF files. We process the PDF files for printing on HP Indigo presses, which use the...
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