| | <<<Back 1 day (to 2020/09/23) | Fwd 1 day (to 2020/09/25) >>> | 20200924 |
| Antonio81 | Hello | 08:36.32 |
| ghostbot | Welcome to #ghostscript. If you have a question, please ask it, don't ask to ask it. Do be prepared to wait for a reply as devs will check the logs and reply when they come on line. If you are looking for help or infomation about MuPDF, try the new #mupdf channel. | 08:36.32 |
| Antonio81 | I've got a problem that I'm not being able to solve. I'm currently using ghostscript to auto adjust pdfs for printing (as A4 paper size) but when the text is out of the printing area ghostscript cannot adjust its size automatically | 08:38.17 |
| kens | Antonio81: I'm afrdaid I don't really understand what you are asking Ghostscript to do | 08:39.12 |
| Antonio81 | why? | 08:39.29 |
| | the thing is | 08:39.42 |
| kens | Its not clear to me what you mean by 'out of the printing area' and why you expect Ghostscript to do something 'automatically'. You haven't given me a command line, which makes it hard to knwo what you are doing, and ideally an example file to demonstrate the problem woudl be helpful | 08:40.34 |
| Antonio81 | when you are printing a PDF file using acrobat reader there is an option that will auto fit the pdf to the printing area (sometimes shrinking the pdf area to fit the printing area) | 08:40.35 |
| | ok, 1 sec :D | 08:40.46 |
| | gswin64 -q -sDEVICE=pdfwrite -sDEFAULTPAPERSIZE=a4 -dCompatibilityLevel=1.4 -dBATCH -dNOPAUSE -o output.pdf -c "<< /BeginPage {0.99 0.99 scale 2 10 translate } >> setpagedevice" -f input.pdf | 08:41.06 |
| kens | OK so you are generating a new PDF file from the original | 08:41.30 |
| Antonio81 | i've used this command and it scales the pdf file, but if I rerun the command using the output file it will scale again | 08:41.50 |
| kens | Umm, well, yes, | 08:42.05 |
| Antonio81 | and what I'm looking for is something that auto scales the document | 08:42.12 |
| kens | The command scales the PDF content every time | 08:42.15 |
| Antonio81 | yes | 08:42.19 |
| kens | That's what you've told GS to do :-) | 08:42.35 |
| Antonio81 | If the document already fits the printing area, It would not be needed to scale | 08:42.47 |
| kens | If I understnad what you want (I could esily be mistaken) then I'd suggest you define the media size as FIXED, and then use -dPDFFitPage | 08:43.11 |
| Antonio81 | I've thought of extracting the document's pages size | 08:43.13 |
| | and then check if the page needed to be scaled or not | 08:43.33 |
| kens | SO if you want teh content on A tehn : | 08:44.08 |
| | -dDEVICEHIGHTPOINTS=792 -dDEVICEWIDTHPOINTS=692 -dFIXEDMEDIA -dPDFFitPage | 08:44.08 |
| | A4 that is sorry | 08:44.14 |
| Antonio81 | its ok :D | 08:44.19 |
| kens | And -dDEVICEHEIGHTPOINTS=792 | 08:44.30 |
| | Obviously I can't type this morning :-( | 08:44.43 |
| Antonio81 | but that raises another problem :D | 08:44.50 |
| kens | So if the PDF file uses A4 media, then no scaling will take place, if it uses (eg) A3 then it will scale by 50% | 08:45.04 |
| Antonio81 | If I try to print it on its orginial size the printer will ask me to select the paper size | 08:45.16 |
| | i'll give you an example, 1 sec | 08:45.42 |
| kens | OK | 08:45.48 |
| Antonio81 | can you please open the image? https://prnt.sc/umyc4e | 08:47.22 |
| | and I will explain it to you | 08:47.38 |
| kens | OK I see that | 08:47.39 |
| | Italian ? | 08:48.08 |
| | Umm no | 08:48.17 |
| Antonio81 | Portuguese | 08:48.22 |
| | https://prnt.sc/umycux | 08:48.23 |
| | and the other one | 08:48.26 |
| kens | Yep got both | 08:48.43 |
| Antonio81 | On the first picture, if you check the green rectangles that information will not be printed (maybe because of the margins) | 08:48.54 |
| kens | I would guess so, yes, looks like hte printer has non-printable margins | 08:49.26 |
| Antonio81 | but on the second image, everything is printed because adobe acrobat auto adjusts the pdf to the printing area | 08:49.28 |
| kens | Yes, its sets it to 96% if I read that correctly | 08:49.56 |
| Antonio81 | so, my question is if there's any option similar to adobe auto adjust for evey pdf | 08:49.57 |
| kens | No, that's part of the printing system, nothing to do with the PDF. | 08:50.16 |
| Antonio81 | but if i use this command gswin64 -q -sDEVICE=pdfwrite -sDEFAULTPAPERSIZE=a4 -dCompatibilityLevel=1.4 -dBATCH -dNOPAUSE -o "D:\Antonio\CentralCer\output.pdf" -c "<< /BeginPage {0.99 0.99 scale 2 10 translate } >> setpagedevice" -f "D:\Antonio\CentralCer\input.pdf" | 08:50.42 |
| kens | The printing system knows what the printable area of the media is, and knwos the size of the PDF | 08:50.47 |
| Antonio81 | it will print correctly | 08:50.58 |
| kens | Sure, if you know the printable area, then you can do rthe same adjustment yourself. | 08:51.16 |
| Antonio81 | and it is working as intended, the problem is that on another pdf I might not need to do that | 08:51.19 |
| kens | But there's no way for Ghostscript to know that. | 08:51.24 |
| Antonio81 | and that command will always resize | 08:51.25 |
| kens | Absolutely, yes, but as I say Ghostscript can't know what you want to do. | 08:51.53 |
| | You can indeed find the media size from the PDF file | 08:52.06 |
| Antonio81 | ok @kens | 08:52.30 |
| | thanks a lot for your help :D | 08:52.36 |
| kens | But that won't immediatley tell you whether the content fits into the printable area. | 08:52.39 |
| chrisl | If you're willing to do some scripting, it would be possible | 08:52.42 |
| Antonio81 | i am | 08:52.47 |
| | I have to get it to work for my company... | 08:52.53 |
| kens | Its possible the left and bottom might be white | 08:53.03 |
| Antonio81 | either using ghostscript or another program | 08:53.06 |
| chrisl | There is a device (bbox) that will print the bounding box of the page markings | 08:53.14 |
| kens | was about to reccomend bbox as well :-) | 08:53.29 |
| chrisl | Comparing that to the imageable area of the printer would tell you whether you need to scale, and by how much | 08:54.10 |
| Antonio81 | chrisl is it available on gs? | 08:54.51 |
| kens | yep, the bbox device | 08:55.01 |
| chrisl | It's a gs device, yes | 08:55.04 |
| Antonio81 | i will give it a look :D | 08:55.15 |
| | thanks a lot guys | 08:55.19 |
| chrisl | Good luck! | 08:55.27 |
| kens | NP please come back if you have more questions | 08:55.32 |
| Antonio81 | i will :D | 08:55.59 |
| | can I get the printing area size from the printer? | 09:24.52 |
| chrisl | From the printer manual? | 09:27.24 |
| | You might be able to find PPD file(s) for the printer(s) | 09:28.29 |
| | I've no idea if you can retrieve that sort of info from the Windows print system, but I suspect, even if you can, it would need C++/C# coding.... | 09:30.39 |
| | And whether (and how!) you could do it by communicating directly with the printer would be entirely dependent on the individual printer | 09:31.44 |
| kens | PPD is probably the better bet, possibly there's a spool API to retrieve it | 09:35.00 |
| | I think the printer driver knows the characteristics of the pritner on Windows, but querying it would need C/C++/C# coding I think | 09:35.54 |
| | Well apparently its available 'somewhere' Microsoft docs gave me this (eventually): | 09:54.42 |
| | https://docs.microsoft.com/en-us/dotnet/api/system.drawing.printing.pagesettings.printablearea?view=dotnet-plat-ext-3.1 | 09:54.42 |
| Antonio81 | @ken | 10:31.39 |
| | @kens thanks | 10:31.44 |
| kens | Sorry I can't give you any more clues, Microsoft have changed the printing API totally since I last looked at it | 10:32.08 |
| Antonio81 | Hi again | 14:45.17 |
| velix | Can ghostscript handle SVG? | 19:59.36 |
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