What should be the behavior of Background with shfil I have a simple PostScript file that uses a Radial shading dictionary and shfill operator. </PageSize [300 300]>> setpagedevice 10 10 moveto 290 10 lineto 290 290 lineto 10 290 lineto closepath ... 
Axial shading pattern with different alpha Hi, I'm trying to apply different alpha values to axial shading pattern when drawing and I've found PDF Axial Shading Pattern ranging opacity very helpful. But what kind of soft mask (PDF 1.4) should I use (d... 
CIDFont and PDF Hi, thanks to the lrosenth for the help with my question about support for CID keyed Type1 fonts in PDF. I will make sure that I read the ISO PDF spec - it is more clear. Sadly, I have another question: I h... 
PDF CID keyed font support Hi, I understand that PDF supports embedded CFF font programs for composite fonts of type CIDFontType0 - the spec is clear. But, does it support embedded font programs that are not CFF - ie. CIDFont wit... Changing creation date on adobe acrobat 9 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, they all took t... 
when I clciked on the file to open it asked me to opne or save but i clciked on open it automatically a folder was opened path :->>windows->>Temporary Internet Files ->Content.IES->> Hi Guys, Please let me know why it is opening like this? 
Form XObjects without Resources - do we ignore ancestor forms? Hi, I'm just wondering what happens in the below situation. We have a Page which includes a form XObject #1, which itself contains another form XObject #2. Form #2 uses a font but has no Resources dictionary... 
Is a zero length glyf table valid for a TTF subset? I've posted related queries in a few forums - there is some background info at https://forums.adobe.com/thread/1611899 and it was suggested I ask the experts here Basically in some situations InDesign is gene... Objects missing endobj keyword in a PDF 1.4 file Hi all I have a pdf file of 1.4 version and it has some objects which miss the endobj keyword at the end of object definition i.e. 15 0 obj << /Type /Font /Subtype /Type1 &... 
Is there a way to tell what settings were used to export a PDF? Is there any way to tell what export settings were used to create a PDF? I'm trying to recreate settings used in a previous PDF. 
Can't construct a valid cross reference stream. I'm building a PDF generation library from scratch. Currently I'm having trouble generating a valid crossreference stream, but I'm totally lost as to why it is invalid. %PDF-1.7 %µ 0 0 obj << /P... 
PDF Axial Shading Pattern ranging opacity Hi, I'm trying to figure out the way to have in PDF (say 1.4) an axial shading pattern but such that the opacity of the colors ranges along the shading, not just the colors themselves. This is naturally suppo... 
Adobe Reader crashes on duplicate pages Adobe Reader will either give Error 14, or just crash out and quit if it comes across a PDF file with duplicate pages, for example: /Kids [9 0 R 9 0 R] By my reading of the standard, there is no explic... 
Duplicate entries in the Fields array I came across a (strange) pdf and after an analysis it turned out that some of the fields occur multiple times in the Fields array. Now when looking up the spec it states: "An array of references to the document̵... 
How to permanently rotate pdf 90 deg? Whenever I open a certain pdf doc it is shown clockwise rotated by 90 deg. Ok I can de-rotate it by clicking the appropriate menu in Adobe Reader. But is there a way to save this pdf so that it is automatically sh... 
Decompressing a cross reference stream with Params. I'm losing my mind trying to decompress this stream. I've asked everyone and am not having much luck with it. This is a cross reference stream with decode params. I have used an external library f... 
If I add PDF files to my website , can the goodlebot read it? My website is [link removed] It is about education. Id like to add files about education to be downloaded by teachers bu I do not want them to be read by the googlebot. So If I add PDF files will the bot be able... 
CIDset purpose in PDF files Hello, embedded CID fontCould someone explain me a purpose of CIDset in PDF / PDF/A-1b files? What are the benefits/drawback if the information is not included. I am getting error from preflight tool shows "List of C... 
Decompressing Xref Streams? I am having significant problems decompressing xref streams. Unfortunately the use of Params has complicated things a little. I am using various open source libraries to do this but I just wanted to check if my... AES 256 Revision 6 (PDF 2.0) Encryption I am trying to implement decryption of AES 256 Revision 6 (PDF 2.0) as described in the ISO 32000-2 spec and having some success but getting some peculiar results that I cannot resolve and would appreciate some sugges... 
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