| | <<<Back 1 day (to 2011/11/11) | 2011/11/12 |
| mvrhel | Robin_Watts: for the logs, I tracked down that there is an error in the tiling of the threshold screen during landscape mode and in the attempts to get things lined up for 16 bit data moves. I will go ahead and send you the updated patch without this since it is a separate issue | 03:46.23 |
| brutal_chaos | Hello, I am using -sDEVICE=pdfwrite and I am attempting to shrink images to be as small as possible. I am getting 50+MB tiff images down to ~130KB PDF files. The one issue is, the readability is low. Is there a way to 'sharpen' an image with ghostscript? Or some options to prevent 'fuzziness'? I do use -dPDFSETTINGS=/screen, I have tried -dPDFSETTINGS=/ebook, but that gives me a pdf ~700K. Is it possible to keep the ~130KB size, but have | 04:14.40 |
| | gs -sDEVICE=pdfwrite -dCompLevel=1.6 -dPDFSETTINGS=/ebook -dNOPAUSE -dQUIET -dBATCH -sOutputFile= | 04:15.23 |
| | that's the full line. | 04:15.27 |
| | I am starting with tiff images (though I have to use convert (imagemagick) to make them pdfs first since gs doesn't like the tiffs we have) | 04:18.32 |
| | I guess what I am wondering is how can I use LZW (or another form of) compression within a pdf that gs writes | 04:51.49 |
| mvrhel | -sDOINTERPOLATE may help | 05:49.46 |
| brutal_chaos | mvrhel: thanks, google isn't finding anything, what can I do with that? | 06:15.58 |
| mvrhel | oh I thought you wanted an option on ghostscript sorry | 06:16.22 |
| brutal_chaos | mvrhel: I do, I do not know how to use it though. (parameters to use, etc) | 06:17.22 |
| mvrhel | oops -dDOINTERPOLATE | 06:18.27 |
| | http://ghostscript.com/doc/current/Use.htm | 06:18.34 |
| | but I am not sure it does anything in the pdfwrite device case | 06:18.47 |
| | oh you want to make the files smaller | 06:19.11 |
| | I thought you wanted to have smoother images | 06:19.19 |
| | lots of stuff about pdfwrite device here http://ghostscript.com/doc/current/Ps2pdf.htm | 06:20.31 |
| brutal_chaos | mvrhel: I do want smaller yes, smoother as well. DCTEncode makes the images rather...ugly. | 06:21.01 |
| mvrhel | there is a LZWEncodePages I believe | 06:22.39 |
| | but you will want to talk to kens when he returns Monday | 06:23.21 |
| | to get details about pdfwrite options | 06:23.29 |
| brutal_chaos | mvrhel: cool, thanks. | 06:24.01 |
| | I am trying to get ghostscript to work in a specific way to save my IT department a few thousand $$. | 06:24.30 |
| | Currenlty for a couple thousand the quality is better at the smaller size, but I can get (with -dPDFSETTINGS=/screen) smaller files. | 06:25.14 |
| | I just need them to look better. ;) | 06:25.33 |
| Robin_Watts | ok, time to fit new gfx card. bbs. | 11:36.53 |
| kens | tkamppeter if you are there or reading the logs. I believe I have a fix for #692626 and 692624 (they are the same problem). I am testing it now, assuming it is OK I will integrate it today or Monday. | 12:17.16 |
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