Soft 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 ArticleDetecting white text knockout
Hi all! I have a question for you. I want to detect white text that doesn't knock out. I already detect overprinting when the text is black, and less then 12px.Now I think by detecting white text, with...
View ArticleIs it possible to merge two PDF pages into one page?
I have two PDF pages - one is a certificate, the other a logo - that I need to merge into a single one-page document (that is - I want the logo to superimpose over the certificate). Is this possible...
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 Articlexref with object number greater than trailer's size value
Hello, a client sent to us a PDF with a strange xref table. Here is what it looks like: xref0 55%% standart xref entries200001 50000052507 00000 n 0000052793 00000 n 0000053079 00000 n 0000053365...
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 ArticleErrors converting indesign pdf to pdf/A-1a - any ideas what they mean?
Acrobat has to convert a tagged PDF 1.5 document generated by indesign to PDF/A1a but does not seem able to do this. If anyone could explain these errors to me: - Structured PDF : Type entry in a...
View ArticleClik here to view.
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 ArticleClik here to view.
How do I find the position of a single character on a page?
Hi guys, I am developing a PDFEditor, but am having trouble implementing the code which finds the location of glyph characters on a page (in device space). I have read the pdf reference on Text, but do...
View ArticleBest way to programmatically test opening a pdf
My company, among other things, uses an image processing library to do complex conversions of various types of content ... including pdfs. Sometimes, this library fails and we are looking for a way to,...
View ArticlePDF blurry...please help
hi,;i feel like there should be an easy way to solve this problem, but i have not been able to figure it out after about an hour of googling. i scanned a 5-page article from a magazine, took the...
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 Articlewhat is involved in locating and replacing text
Greetings, From a coder's high level view, what is involved in finding a specified text and replacing it by something else?What are the main steps in doing this? Thank you for your time. Sincerely,...
View ArticleEmbedding a font without subsetting.
Hello, I try to programmatically embed a full font into PDf in order to let the later editing of a document. What I do now is scanning through a font file and writing all the glyphs from the ttf into...
View ArticleJBIG2 Object Stream - Extract with file header?
Hello, I'm attempting to extract JBIG2 images only from a PDF. The only problem is that the JBIG2 images are raw data streams without a header, and so I can't just save it into a .jb2 file, as no...
View ArticleFont Flags
Hi,In Font Descriptor The font 'Courier' Contains bad/Flags. means? I Followed Flag descriptions still same prob
View ArticleClik here to view.
Importing one Pdf document into another.
I am trying to import one Pdf-document into another using a Reference XObject. I am looking at thePDF- specification, and I thought I was doing things the right way, but its not working. The...
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 ArticleAdobe Signature Services Protocol
Hi all,Where can I find specifications of Adobe Signature Services Protocol for Roaming Credentials? I've searched through virtually all Adobe documents and Internet but with no success.Any help is...
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 Article