| | <<<Back 1 day (to 2020/12/21) | Fwd 1 day (to 2020/12/23) >>> | 20201222 |
| tmtm | anyone know how to add highlight text inside existing pdf file? | 02:24.47 |
| | i try with this script but no luck, idk what's wrong | 02:25.09 |
| | To see the 10 largest files in a directory or on a UFS partition, use | 02:25.21 |
| | du -h /partition_or_directory_name | sort -rh | head | 02:25.22 |
| | -- Dru <genesis@istar.ca> | 02:25.22 |
| | tmtm@fbsdboxku:~ $ | 02:25.22 |
| artifexirc-bot | <RayJohnston> What do you mean by "highlight" text? | 02:25.27 |
| tmtm | put background color on text | 02:25.48 |
| | [ /Rect [xx yy zz hh] /Subtype /Highlight /Color [1 1 .75] /ANN pdfmark | 02:27.22 |
| artifexirc-bot | <RayJohnston> oh, that is not possible by simple editing of PDF since text has a transparent background, so you would have to paint a rectangle of the correct size below the text BEFORE the text is drawn | 02:27.28 |
| | <RayJohnston> sorry -- I didn't know you were talking about text that is in an Annotation | 02:28.28 |
| | <RayJohnston> tmtm: you seem to have pasted some garbage (about how to see the 10 largest files in a directory) to this thread | 02:29.24 |
| tmtm | sorry, i tried to paste the script from konsole. | 02:30.02 |
| artifexirc-bot | <RayJohnston> tmtm: I see code is pdf_draw.ps of Ghostscript that has to do with implementing Highlight, so I recommend that if what you have doesn't work, submit a bug https://bugs.ghostscript.com and make sure and attach a sample input file and command line for us to look into. | 02:36.04 |
| | <RayJohnston> since we are approaching (into, for some of our staff) the holidays, it may not be "immediate" response 😉 ) | 02:37.17 |
| | <RayJohnston> tmtm: if you open a bug, make sure it is "Component: PDF Writer" | 02:41.16 |
| tmtm | RayJohnston sorry, but what do you mean by bug? | 02:43.23 |
| artifexirc-bot | <RayJohnston> tmtm: sorry. http://bugs.ghostscript.com | 02:44.05 |
| | <RayJohnston> we'll have a look, and if it is something that is supposed to work with your file, it's a bug. If it is something we haven't implemented yet, it'll be classified as an enhancement. | 02:45.35 |
| tmtm | i know, but is it possible to highlight text (annotation) on existing text inside pdf file? and do you think my script are correct? | 02:49.22 |
| | btw how to reply with your name on it? | 02:50.01 |
| artifexirc-bot | <RayJohnston> tmtm: no idea -- I'm not an expert w.r.t. our pdfwrite device, and even less knowledgeable about pdfmark. | 02:50.47 |
| | <RayJohnston> tmtm: hmm... I don't know what you mean by "reply with your name on it" | 02:51.33 |
| | <RayJohnston> tmtm: if you mean, how do you make me aware of your reply/comment, you can use @RayJohnston (which beeps me on discord) or just my nick if I happen to be on IRC | 02:54.20 |
| ray_laptop | tmtm: as I am now (we've switched to mostly using discord, but we have a "bot" to connect back-and-forth between IRC and discord channels | 02:55.25 |
| artifexirc-bot | <RayJohnston> (we had a L...O...N...G...) internal discussion among the staff -- some liked IRC, some Skype, and some hated the obverse, so we opened the discussion to other chat systems (discord won out over slack and the others -- for now) | 02:57.57 |
| | <RayJohnston> but our IRC #ghostscript channel is still around and monitored | 02:58.38 |
| ray_laptop | tmtm: LMK if you have more questions about submitting a bug. | 02:59.26 |
| artifexirc-bot | <RayJohnston> heading off for dinner ... | 03:00.24 |
| tmtm | @RayJohnston ah thanks. | 04:07.15 |
| artifexirc-bot | <KenSharp> tmtm its very hard to add an annotation to a page of a PDF file using Ghostscript. The annotation pdfmark has to be interpreted during the course of the page rendering **not** after the entire PDF file has been processed. You can use the BeginPage and EndPage PostScript procedures to send a PostScript sequence to a page, but that's about your only recourse. In addition, your pdfmark is missing a QuadPoints array. This is listed as | 08:56.33 |
| | <KenSharp> This command adds a green highlight to the bottom of the golfer example file supplied with Ghostscript | 08:56.54 |
| | <KenSharp> gs -sDEVICE=pdfwrite -o out.pdf -c "<</EndPage {exch pop 0 eq {[/QuadPoints [10 10 200 10 10 20 200 20] /Rect [10 10 200 20] /C [0 1 0] /Subtype /Highlight /ANN pdfmark true}{false}ifelse}>> setpagedevice" -f \ghostpdl\examples\golfer.eps | 08:56.55 |
| | <KenSharp> You can extend the EndPage procedure so that it only acivates on a partiuclar page, or dos different things with different pages. | 08:57.24 |
| | <KenSharp> However, Ghostscript is probably not the best tool for this task. It's not really intended for editing PDF files, you would probably be better using something else. | 08:58.06 |
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