Identity-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 ArticleHow to create a pdf file from multiple images ?
Dear All, I want to create a SINGLE page pdf file from two or more page size images that are combined to make a single page pdf. Again, this question is on pdfs that are made out of several, atleast...
View ArticleHow to rotate a part of a PDF page ?
Hi, I want to know if Adobe Acrobat X Pro can rotate a part (selection) of a page, and not the whole page ? Thanks,Anthony
View ArticleRight to left language
Hi,Is there any support for right to left language in PDF?After reading the PDF spec, I found not too much about right to left language support. And I guess PDF file only cares where to posit each...
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 ArticleParent/child fonts problem
Hi all I'm developing a program which has been writing out servicable PDF files for a few months, with embedded Truetype fonts; the files open without problem and display correctly. However, I am now...
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 ArticleClik here to view.
Creating PDF with PHP gives overlapped Japanese texts
Hi, I am creating PDF using PHP for Japanese characters. I am using 'ZapfDingbats.afm' with 'MSMINCHO.TTF' file. Below is the screenshot of how I am getting the PDF. Also for new line some character is...
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 ArticleHow do I replace a text placeholder in PDF files
I tried to replace a placeholder in a pdf file. After I extracted the text and replaced the placeholder with the desired value, I had to rebuild the file, while preserving all formatting. The...
View ArticleSoft Mask with Type 1 (Function-based) Shading
I want to use a custom function as the soft mask - Type 1 (Function-based) Shading But a function, does not generate alpha to be used with SMask, so my questions areIs there a way to make a Type 1...
View ArticlePDF Programming
hi everybodyi need to know how to make pdf when u have data which lies in between stream and endstream in pdf file .Actually i want to change pdf data for localization so i have to edit the data of pdf...
View ArticleSignature Dictionary 'Filter'
I have a question about the 'filter' in the signature dictionary. It is defined as (taken from PDF 1.4 due to PDF/A): Filter name (Required; inheritable) The name of the signature handler to be used...
View Articlehow can i get the unicode value from a simple font with a difference array
dear all i want to extract the cjk from the pdf but at the document it dose not have a tounicode ,so i dont know how to get the unicode value.10 0 obj<</Length 11 0 R/Filter...
View ArticlePDF 1.4 - order of form fields (tab order, signing order)
I have a question related the order of form fields: How can I influence the order of fields?I use signature fields and want to explicitly set which signature is signed first, second etc. Also the tab...
View Articlecatalog dictionary: /AcroForm optional or required
Hi, i have a question: PDF 1.4 (due to PDF/A) specification defines the 'AcroForm' key in the catalog dictionary as optional.But this can mean two things: A)- If the pdf has form NO fields ->...
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 ArticlePdf Header Format Question
Hello, I have a question about the PDF header. I have noticed that we have some pdf's that have a header like "%PDF-1.3\r\n", note that this header has both a carraige return and line feed (\r\n). Then...
View ArticleHow to construct ToUnicode object?
I create font embeded PDFs in my application successfully. But content extraction (e.g. copy) does not work because I do not know how to create the /ToUnicode object correctly in font dictionary. I...
View ArticleRotate text
Hi,I need to generate PDF documents that contain graphs. Most I can do easily, but I’m not sure about vertical text for the Y axis label. It seems that I can not just use the ‘cm’ operator to rotate...
View Article