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Article #12593

Re: Illegal operation 'm'

#12593
From: debanjan bhattacharyya
Date: Fri, 31 May 2002 11:33
17 lines
2573 bytes
Aandi  Do you mean exporting the PDF file to PS format and then Distilling it back to PDF ? 

I have tried that . It is however removing the Link information !! . 

What I found after some doing some research is that the pdf files have 're' , 'm' operators inside BT and ET  operators ( when opening PDF files in ASCII mode ) . If I manually remove all such operators with there operands and succeding fill / stroke operators within BT and ET operators then the file works fine . With links .  

But point is how to restore the visual aspect ? .  Adoce 4.0 , 5.0 , Distiller 3.0 using PDF 1.2 / 1.3 specs , creates PDF files which can no more be viewed in such a manner ( everything encrypted ) . So no way replicate the problem. 

I tried using Acrobat 3.0 Distiller 3.0 following PDF 1.1 with PDFMaker 1.0 . When I created PDF documents with graphics and text objects  ( say linked texts with rectangles ) there were no illegal 're' or 'm' tags inserted in between BT and ET. So I just could not replicate the problem . Which was what I intended to do. Thus I got no clue about what visual aspect remains hidden inside those path constructers found inside BT and ET operators. 

If I need to restore the files then I need to do them along with the visual aspects. 

Can you tell me how to replicate the problem or how to create such defective pdf files ? I mean what version had the problem ? May be it was some buggy distiller version from Adobe?. That will be the best way to understand what part of the paiting information inside those Text objects are usefull and hence need to be done seperately with some other obj elesewhere in the file , and what part can be peacefully done away with. 

I hope I could make my point understood. 

Thanks for writing and thanks in advance for any more help you can provide.
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Subject: Re: Illegal operation 'm'
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Date: Fri, 31 May 2002 04:33:34 -0700
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