postscript

问题 Okay, I now "know" postscript, everything makes a lot more sense now. I've found that if I change the colour though it affects backgrounds in other areas, I now know that sc, SC, cs and CS are procedures: /cs { /pdfFillXform exch def dup /pdfFillCS exch def setcolorspace } def /CS { /pdfStrokeXform exch def dup /pdfStrokeCS exch def setcolorspace } def /sc { pdfLastFill not { pdfFillCS setcolorspace } if dup /pdfFill exch def aload pop pdfFillXform setcolor /pdfLastFill true def

问题 I'm currently writing a typesetting application and I'm using PSG as the backend for producing postscript files. I'm now wondering whether that choice makes sense. It seems the ReportLab Toolkit offers all the features PSG offers, and more. ReportLab outputs PDF however. Advantages PDF offers: transparancy better support for character encodings (Unicode, for example) ability to embed TrueType and even OpenType fonts hyperlinks and bookmarks Is there any reason to use Postscript instead of

问题 Is it possible to create a tiff file from a postscript-file (created from a pdf-document with readable text and images) into a tiff file without the images and only the text? Like add a maxbuffer so images will be removed and only text remaining? And if boxes and lines around text could be removed as well that would be awesome. Best regards! 回答1: You can redefine the various 'image' operators so that they don't do anything: /image { type /dicttype eq not { % uses up argument, only one if dict

问题 gs -dCompatibilityLevel=1.4 -dPDFSETTINGS=/screen -dNOPAUSE -dBATCH \ -sDEVICE=pdfwrite -sOutputFile=output.pdf input.pdf I'm using (trying anyway) to use Ghostscript to reduce my PDF file size. The command above looks like it works, it reduces file size greatly, but then several of the fields are garbled. As for as I can track it down, It's doing font substitution. IE, The same text = same garbled text. The fonts are embedded in the PDF when it gets to me. Additionally, I have tried to add

问题 I need to create PostScript output from our system. Our system produces highly formatted documents to numerous formats and I need to add .ps as an additional format. One bit of weirdness, our code is all written in Java and we use IKVM for the .net version of our library. We have about 5% of the code written in C# and the rest is Java converted with IKVM. I create .ps files on the Java side using a library that allows me to write to a Graphics2D object it provides. Unfortunately, in .NET (via

问题 After looking for answers all around, I find lots of help and guidance on how to save a file either using turtle screen or tkinter canvas mixed with the turtle module. I'm drawing a large image and the windows size is fine and scrollable, letting me see the entire image. But when I try to save the image to postscript, I only get the window view, not the entire canvas. Cannot find out how to proceed, any tips? There might be an answer in How can I convert canvas content to an image? but I

问题 I have a Hex string that's coming from postscript file. << /ImageType 1 /Width 986 /Height 1 /BitsPerComponent 8 /Decode [0 1 0 1 0 1] /ImageMatrix [986 0 0 -1 0 1] /DataSource < 803fe0503824160d0784426150b864361d0f8844625138a4562d178c466351b8e4763d1f904864523924964d27944a6552b964b65d2f984c665339a4d66d379c4e6753b9e4f67d3fa05068543a25168d47a4526954ba648202 > /LZWDecode filter >> image } def Below are the methods that I am using. I have commented out the method for updating color. public static

问题 I would like to include a TIFF image into my PostScript similarily to an EPS and a JPEG. But it fails on creation stating the file ImageType isn't JPEG. Is this possible? 回答1: You can't use a TIFF directly in PostScript, as PostScript doesn't support the TIFF file format. You can use a PostScript program to read a TIFF file and process it as an image, for example : Conversion of TIFF to PDF with Ghostscript 来源： https://stackoverflow.com/questions/30707216/how-to-insert-a-tiff-into-postscript

问题 This dot source graph A { a; } graph B { "Enûma Eliš"; } when compiled with dot -Tps generates this error Warning: UTF-8 input uses non-Latin1 characters which cannot be handled by this PostScript driver I can fix the UTF-8 problem by passing -Tps:cairo but then only graph A is in the output -- it is truncated to a single page. The same happens with -Tpdf . There are no other postscript driver available on my installation. I could split the graphs into separate files and concatenate them

问题 I'm trying to specifically change out text from an .EPS file that's generated by an Adobe product, like Illustrator or InDesign. For whatever reason some fonts are broken onto separate lines and moved a tiny bit. It's not a TrueType versus OpenType thing. Here's an example, the text is "$$tag1$$": %ADOEndSubsetFont /ZDCMCB+NiagaraSolid-Reg /NiagaraSolid-Reg findfont ct_VMDictPut /ZDCMCB+NiagaraSolid-Reg*1 [36{/.notdef}rp /dollar 12{/.notdef}rp /one 47{/.notdef}rp /a 5{/.notdef}rp /g 12{/