| | <<<Back 1 day (to 2018/11/06) | 20181107 |
| kens | lorfds as far as I'm aware GhostPCL supports macros in PCL, yes. Beyond that, I know nothing about PCL macros. | 08:23.26 |
| a-l-e | the scribus layout software seems to be affected by a ghostscript bug... | 09:25.13 |
| | the user can load a pdf into an image frame and scribus converts it to a png when exporting the whole file to pdf. | 09:25.49 |
| | gs 9.24 and 9.25 fail with the command: | 09:26.23 |
| | gs -q -dNOPAUSE -dQUIET -dPARANOIDSAFER -dBATCH -sDEVICE=pngalpha -dTextAlphaBits=4 -dGraphicsAlphaBits=4 -r300 -sOutputFile=/tmp/test.png -dFirstPage=1 -dLastPage=1 -dUseArtBox mu-install-enUS-a4.pdf -c showpage | 09:26.41 |
| kens | If you think you've found a bug, then you shoudl open a bug report. We'll need both the command line and the specimen file attached to the buig | 09:26.47 |
| | And it looks to me like your command line there will emit an extra bllank page | 09:27.16 |
| chrisl | a-l-e: does it work if you drop the -dPARANOIDSAFER ? | 09:28.01 |
| a-l-e | i got the command from one of the main scribus developer. | 09:28.39 |
| kens | Yes, but the question remains valid | 09:28.51 |
| a-l-e | (sadly i cannot link to the ticket in the scribus tracker since it contains a pdf that cannot be made public) | 09:29.00 |
| chrisl | Oh well, not much we can do, then | 09:29.14 |
| kens | Indeed | 09:29.18 |
| a-l-e | no it does not work either if i remove -dPARANOIDSAFER | 09:29.43 |
| kens | In what way 'does not work' ? | 09:29.53 |
| | crash, error, wrong output, something else ? | 09:30.04 |
| a-l-e | segementation fault | 09:30.10 |
| kens | Well I don't think there's any way we're going to be able to fix that without seeing the file | 09:30.27 |
| chrisl | Ah, so leave off the LastPage/FirstPage parameters | 09:30.30 |
| kens | Hmm yes there was a report for that wasn't there | 09:30.43 |
| a-l-e | isn't last/first page picking the page range? | 09:31.23 |
| chrisl | Yes | 09:31.28 |
| kens | Yes, but a range of 1->1 is failry pointless | 09:31.36 |
| a-l-e | well, scribus needs that... | 09:31.37 |
| | that's not the first page? | 09:31.49 |
| kens | We're trying to diagnose your problem without seeing the file | 09:31.55 |
| | Yes that's the first page | 09:32.09 |
| a-l-e | i have created a bugzilla account while chatting with you... | 09:32.14 |
| kens | Well, we cna mark the file private | 09:32.26 |
| a-l-e | and i do the step for uploading everything in parallel... | 09:32.28 |
| kens | If you're prepared to share it with us | 09:32.32 |
| a-l-e | i can share a file of mine that fails. it's a public one. | 09:32.44 |
| kens | That'll do nicely! | 09:32.52 |
| a-l-e | but i cannot make the scribus bug public. | 09:32.53 |
| kens | Well we cna at least see if your problem is already fixed, which I suspect it is | 09:33.11 |
| a-l-e | https://bugs.ghostscript.com/show_bug.cgi?id=700139 | 09:37.45 |
| kens | OK give me a minute | 09:38.10 |
| | Ah its pngalpha, almost certainly that's been fixed | 09:38.26 |
| chrisl | http://git.ghostscript.com/?p=ghostpdl.git;a=commitdiff;h=04333a6f1344df6b5069880cafe7b190d0984601 | 09:39.13 |
| kens | That's what I was thinking yes | 09:39.31 |
| | Yep, it signal 11's on 9.25 works on current code. If you remove the _dFirstPage dna -dLastPage it also works. | 09:44.14 |
| | So I'm confident its fixed and 99+% confident its that fix. Though there are several other recent fixes in the same area and it would be best to pick up all of them. | 09:44.14 |
| a-l-e | but if i remove the first and last page scribus cannot select the page to be exported... or is there another way to do it? | 09:44.14 |
| kens | No. | 09:44.14 |
| | You either need to not use the feature, or pick up the bug fix. | 09:44.14 |
| a-l-e | on linux (and i think also os x), scribus is using the installed gs. | 09:44.14 |
| | on windows i think we can provide an older gs. | 09:44.24 |
| kens | Then you need to get a Ghostscritp installed which has the bug fix | 09:44.29 |
| a-l-e | it's not me who needs the patch... it's all our users! | 09:44.48 |
| chrisl | a-l-e: What do you want us to do then? | 09:45.01 |
| a-l-e | ... at least the ones on linux. | 09:45.02 |
| kens | I don't really see what you exepect us to do about it. Its a bug, it was fixed. I'm sure this happens for Scribus too | 09:45.19 |
| a-l-e | i don't expect you to do anything. i was just suggesting that your hints do not apply. | 09:45.55 |
| | and the difference between scribus and gs is that scribus is a software that is directly used by the users. | 09:46.26 |
| kens | So is Ghostscript | 09:46.38 |
| a-l-e | gs is often used in the background by other applications, and this case the user cannot understand what is going on. | 09:46.50 |
| chrisl | a-l-e: Unfortunately, we don't have much influence over when/what fixes the package maintainers roll out | 09:47.23 |
| a-l-e | the only thing scribus can do is issue a version that refuses to create a pdf is gs 9.24 or 9.25 is detected. | 09:47.24 |
| | as said, i cannot force you to do anything. | 09:47.53 |
| kens | You could also use a device other than pngalpha | 09:47.57 |
| | png16m would work I beleive | 09:48.06 |
| | Assuming this is merely a preview | 09:48.19 |
| a-l-e | but if you have a hint that helps scribus "survive" until the patch is on the users computers, that would be awesome. | 09:48.45 |
| | the png is the image that is in the PDF and is used for professional printing. | 09:49.01 |
| | it's not a preview. | 09:49.04 |
| kens | Well, if you want the background left as 'transparent' you don't have a choice. If that's not important (which it likely isn't unless placing the PNG in another page) then you could probably use a differnt PNG device | 09:49.59 |
| a-l-e | pdftops | psselect | gs -sDEVICE=pngalpha ... could be something... | 09:50.05 |
| chrisl | NO!!! | 09:50.20 |
| a-l-e | the png is placed in a scribus page. | 09:50.21 |
| chrisl | Seriously, don't convert to Postscript first | 09:50.31 |
| a-l-e | transparency can be relevant. | 09:50.34 |
| chrisl | You could if you detect a broken version of gs, convert to a single page PDF, then import that without the FirstPage/LastPage params | 09:51.15 |
| a-l-e | gs -sDEVICE=pdfwrite -first -last | gs -sDEVICE=pngalpha | 09:51.21 |
| | ? | 09:51.22 |
| chrisl | I'm not sure I would trust pdfwrite writing to stdout, personally | 09:51.43 |
| kens | I certainly wouldn't! | 09:51.51 |
| chrisl | But do that to a temp file, yes | 09:51.54 |
| a-l-e | ... ok a temp file is ok... i guess. | 09:51.58 |
| chrisl | Remember to delete it :-) | 09:52.14 |
| kens | I wouldn't normally reccomend it at all, but as a work-arond it might be acceptable, in the short term | 09:52.23 |
| a-l-e | yeah. | 09:52.25 |
| | well, i would not put a pdf in an image frame if don't have to... but many users have to do so. | 09:53.06 |
| chrisl | As I say, I'd run time switch between directly to pngalpha and pdfwrite/pngalpha depending on gs version | 09:53.27 |
| a-l-e | i'll test it locally, and if it works here, i'll suggest it to the scribus developer who is in charge. | 09:53.58 |
| | thanks! | 09:54.01 |
| | ok, it works locally. we will see what the "official" scribus guy says... | 09:59.44 |
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