catalog 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 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 Articleembed and reuse pdf inside pdf
Hello! Is it possible to embed a pdf file within another pdf file and reuse the embedded pdf files multiple times?Just like you can reuse for example images or textblocks --> you store it once...
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...
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Different font rendering depending on image transparency
Hi,this is a cross-post from the Adobe Reader forum, where no one was able to help me. It is about PDF rendering issues in Acrobat Reader, concerning pdf files created with latex. I would be glad if...
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“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 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 ArticleExamples of Soft Mask images
Hi, I need to implement Soft Mask image support for a PDF generator (specifically we need to be able to embed PNG images with transparency), read the relevant sections in the PDF specs (sections 8.9.5,...
View ArticleHow to embed an image with transparent background
Not sure if this is the right forum, but I'd be grateful for any advice available. I am not a heavy PDF user, but 2 or 3 times a year I have to create a handbill for an amateur concert. The output...
View ArticleFDF no longer works in Reader 10.1.1. Worked in 9.x and previous
I have a web app that was developed many years ago to serve PDF "templates" with user data inserted into it's forms via FDF. Up until Adobe Reader 10.1.1 (currently testing with this version, possibly...
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Do you want to save changes message while close pdf
hi everyone... I am very new to PDF programmingbasically I wrote my program in notepad and I saved it as .pdf formatbut when I open it and try to close it..it showing me pop up like do you want to save...
View ArticlePDF File with Run Length Encoding?
Would anyone have a PDF file containing text streams compressed in Run-Length Encoding? I need one to test a decompressor. I know they are probably rare and not used anymore which is why one is so...
View ArticleForm field info not showing up, unless field is clicked? (again)
We're using a pdf library called Sync Fusion to automate some fillable fields in a pdf but after the text has been placed it is not visible due to the form field high-lighting. So far we have tried the...
View Articlechange font in DA of FreeText Annotation
I am trying to change the default appearance (the DA entry) of a FreeText annotation. To begin with, I can't find anywhere in Acrobat to change the font of a FreeText annotation. My understanding is...
View ArticleXMP updated with exiftool is not read
If this question is better suited in another forum, please let me know. The following example PDF has been used in a workflow where the XMP meta data has been updated with new values (e.g....
View ArticleHow to compute the font table width?
I'm creating pdfs with my own pdf library using only ArialUnicodeMS.My problem is that characters are drawn overlapped in some cases and I think the problem is in the Glyph Width table.Can you give me...
View ArticleOnline AI into PDF file convertion
I need to perform an online conversion from an AI online generated file, into PDF.This convertion is to be done online, in a web server.I can't find the proper plug'in or software product to do that.I...
View ArticleGetting the text position (inside or outside a box?)
Hi all, I'm using plain Ruby to access the content of an PDF file. This by using yob's PDF Reader from GitHub.Now I've come a long way, but still have one question remaining! How to get the position of...
View ArticleHow large can a PDF file be?
This question is not just strictly about the spec, it's also about what the most common readers will accept. So the file offsets are 10-digit numbers, is the maximum safe offset 2,147,483647 or...
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