| | <<<Back 1 day (to 2016/08/28) | 20160829 |
| sebras | is a little confused. | 07:01.45 |
| | it looks like the mupdf JNI code calls object methods, detect their exceptions, convert these to fz exceptions, which are later converted _back_ to Java exceptions. | 07:02.32 |
| | kens: morning! | 07:02.38 |
| kens | morning sebras | 07:02.43 |
| kens | can't help with MuPDF and especially Java though | 07:02.59 |
| sebras | no, I know. I just need to vent a bit because this is so confusing. :) | 07:06.56 |
| | and it is quite difficult to know what is the "right" way of doing it, but converting exceptions back and forth just seems unnecessary. | 07:07.17 |
| kens | sebras can you connect to the MuPDF repository anonymously ? | 07:07.25 |
| sebras | kens: yes. | 07:07.39 |
| kens | Someone claiming in a bug report that they suddenly can't use git: or http: | 07:07.46 |
| kens | will try my checkout | 07:08.10 |
| sebras | kens: do you have a bug number? | 07:08.37 |
| kens | 697072 | 07:08.59 |
| | http://bugs.ghostscript.com/show_bug.cgi?id=697072 | 07:09.10 |
| sebras | kens: thanks. | 07:09.23 |
| kens | Well, its working for me | 07:10.22 |
| | I'll say so in the bug report | 07:10.31 |
| sebras | kens: I can clone using git:// but not http:// | 07:10.54 |
| kens | Hmm, we do usually allow http: don't we ? | 07:11.12 |
| sebras | kens: we do. could be due to my location. | 07:11.25 |
| kens | How do you test http: ? | 07:11.41 |
| sebras | git clone http://git.ghostscript.com/mupdf.git | 07:11.56 |
| kens | OK one moment then | 07:12.01 |
| sebras | that usually works well for me though, so I'm thinking it has something to do with my location. | 07:12.21 |
| kens | Hmmmmm | 07:12.44 |
| | Not getting anything ehre | 07:12.54 |
| sebras | kens: times out for you? | 07:12.55 |
| | kens: right. | 07:12.58 |
| kens | Not timed out yet, but nothing happening either | 07:13.15 |
| | Looks like its knackered | 07:13.27 |
| sebras | we usually don't support https though, but he doesn't seem to mention that. | 07:13.45 |
| kens | No he just says git: and http: | 07:13.57 |
| sebras | kens: so... restarting gitweb will be the last thing we ask marcosw to do? :) | 07:14.46 |
| kens | has no idea | 07:14.59 |
| | Is that what drives it ? | 07:15.05 |
| | I'm assuming Robin could probably fix it, but of course he's still on vacation | 07:15.33 |
| sebras | kens: to the best of my knowledge. | 07:15.38 |
| kens | Ah actually | 07:15.46 |
| | It just said 'done' here | 07:15.56 |
| | And it did work, so http is OK too | 07:16.07 |
| | Though there's a remarkable lack of feedback while its working | 07:16.22 |
| sebras | kens: oh.. let m try. | 07:16.25 |
| | kens: oh... watch -n1 'du -ks mupdf' actually shows that something is happening! | 07:19.27 |
| | kens: but I get about 8kbyte/s. | 07:19.37 |
| kens | Hmm well that's nice to know. SO its working ofr you now ? | 07:19.46 |
| sebras | kens: RESOLVED WORKSFORME? | 07:20.12 |
| kens | I added to the bug thread that it seems to be working and suggested he try again | 07:20.16 |
| | I guess I'll clos eit yes | 07:20.28 |
| sebras | kens: yeah, I was just not patient enough when there was no feedback. | 07:20.31 |
| kens | I probably would have been the same, but chatting here (and looking at Stack Overflow) I had just left it | 07:21.04 |
| | OK he syas it works for him now, using his phone instead of the office network, so I guess its not our problem. | 07:47.06 |
| | Thanks for checking sebras | 07:47.19 |
| sebras | kens: no problems. | 07:51.06 |
| | kens: hm.. if a constructor in java throws an exception and you do MyCoolObject o = new MyCoolObject(args); then it may fail with that exception, but _besides_ that particular exception that the constructor throws, can the instantiation fail with _another_ type of exception? Like ClassNotFoundException or similar. | 08:22.27 |
| | http://docs.oracle.com/javase/specs/jls/se8/html/jls-11.html#jls-11.2.1 is supposed to explain the answer, but that was _quite_ unreadable for a novice. :) | 08:23.44 |
| kens | Beats me.... | 08:24.20 |
| sebras | kens: the JNI spec knew: InstantiationException and OutOfMemoryError | 08:28.21 |
| | kens: that means that even if you know that your constructor doesn't throw anything then a call new MyCoolObject(args) may fail with an exception _anyway_. | 08:28.58 |
| kens | Hmm, curious.... | 08:29.21 |
| fontdebug | Hi, there, I've detected a little bug in mutool draw -F stext with bbox and spaces | 09:44.43 |
| | here my test pdf: http://digi.ub.uni-heidelberg.de/diglitData/v/mmm.pdf | 09:45.03 |
| kens | If you think you;ve found a bug, best thing to do is open a bug report | 09:45.57 |
| fontdebug | ok. Thanks. | 09:46.12 |
| HD|Laptop | Hi all | 09:47.40 |
| | So, I have that Z2100 plotter (24 inch) connected to my mac, and now I want to print loooong pages on a paper roll | 09:48.04 |
| | Problem is, of course, that Photoshop and Adobe PDF don't really know the concept of a "paper roll" and need a fixed page size (whereas all I have fixed is the width, with 24 inches) | 09:48.38 |
| | Can I setup Ghostscript + CUPS in a way that I can plot loooong documents? No need for color accuracy | 09:49.17 |
| kens | Can't speak for CUPS. You can print arbitrary media sizes with Ghostscript, but you *will* need to specify a media height | 09:49.53 |
| HD|Laptop | That's really annoying to do on OS X, and I need to do it individually for each print | 09:52.31 |
| | Can't I have ghostscript take the input document, scale it up/down to width=60cm, and then rasterize the document and send it to the plotter? | 09:53.02 |
| kens | I don't really understand your problem to be honest. You must be sending eithe rPDF or PostScript to Ghostscript, and to do that you will need to specify a media size | 09:53.10 |
| | How is Ghostscript supposed to know how much to scale the document, if you don't tell it the media size ? | 09:53.32 |
| HD|Laptop | the input document height/width are known, as well as the target width, so it should be trivial to do the scaling | 09:54.00 |
| kens | Certainly it is | 09:54.10 |
| | You can code this in PostScript, no problem | 09:54.17 |
| HD|Laptop | I just don't want to mess around with a calculator and do math by hand ;) | 09:54.21 |
| kens | You haven't stated the input format. In any event you will need to write some PostScript to do it. | 09:55.07 |
| HD|Laptop | Ah, input format is PDFs generated by Photoshop, Indesign and friends | 09:55.44 |
| | Sorry. | 09:55.46 |
| kens | OK so you need to look at the PDFFitPage code in pdf_main.ps (if i recall correctly) | 09:56.11 |
| | Ordinarily you would set up a media size using -dDEVICEWIDTHPOINTS and -dDEVICEHEGHTPOINTS, and set -dFIXEDMEDIA | 09:57.26 |
| | WHich would create a specific media size, and make it 'fixed' so that the PDF file can't change it. | 09:57.48 |
| | Probably the easiest w3ay to do this is to hook the 'setpagedevice' operator. Check the dictionary for a /PageSize entry. Figure out what scale facto you need to get the desired width. Work out the new PageSize using that scale factor. Replace the /PageSize entry with the new calculated size and set scale as required | 09:59.34 |
| HD|Laptop | Hmm. The graphic design dudes have an expensive printer with a machine and some proprietary software, where you just drag your input files in, and you can scale etc. with a GUI | 10:01.24 |
| | I'd be fine with this too, can I use something of the gs toolkit to implement this? | 10:01.45 |
| kens | And I imagine that costs money | 10:01.51 |
| | You can extract the media size from a PDF file using Ghostscript | 10:02.07 |
| | And then draw your graphic. | 10:02.19 |
| | When you figure ou the newly desired media size you can use the -dDEVICEWIDTHPOINTS, -dDEVICEHEGHTPOINTS -dFIXEDMEDIA and -dPDFFitPage switches to force gteh media size and have GS scale the requested media to the new size. | 10:03.24 |
| | THere are other ways to achieve this of course, PostScript is a programming language, so you can solve the same problem in multiple ways | 10:04.07 |
| HD|Laptop | Sounds pretty complex | 10:05.11 |
| kens | Its all easy enough for a PostScript programmer | 10:05.27 |
| | Google searches provide solutiosn: | 10:06.32 |
| | https://ma.juii.net/blog/scale-page-content-of-pdf-files | 10:06.32 |
| tor8 | sebras: the java -> fitz -> java exception roundabouts are from robin's original JNI prototype. I've tried to remove the extra round trip in the code I've written and reworked. | 10:31.09 |
| | sebras: making IllegalArgumentException checked would be a nightmare to use, don't you think? | 11:36.24 |
| sebras | tor8: yo! | 13:15.08 |
| | tor8: I need to talk with you about exceptions some more. | 13:15.29 |
| | are you up for it, or are you busy? | 13:15.43 |
| tor8 | talk away | 13:15.58 |
| | did you see my comment above? | 13:16.02 |
| sebras | reads the logs | 13:16.40 |
| | tor8: ok, then i'll try to remove more roundtrips if i can. | 13:17.12 |
| | they seem so unnecessary. | 13:17.17 |
| | tor8: well, IllegalArgumentExceptions are unchecked by default regardless of whether you declare them using "throws" or not. | 13:17.49 |
| tor8 | yes, I was just reading your discussion with fred | 13:18.01 |
| | having to do a try/catch for exceptions that you know are impossible (because you're not passing illegal arguments) would be a major PITA | 13:18.29 |
| sebras | tor8: right, so there is no drawback in declaring them, but also unchecked exceptions are supposed to be programming errors rather than something that the application can magically fix. consider e.g. off by one re: indicies in an array. | 13:19.02 |
| | yes, I agree. | 13:19.11 |
| | but it is not whether you declare exceptions with "throws" that makes client code _have_ to handle it, it is whether the Exception derives from RuntimeException (unchecked) or not (checked). | 13:19.52 |
| | tor8: this ties into why we made the choice to always throw Exception directly and TryLaterException, both of which do _not_ derive from RuntimeException which makes them checked. | 13:21.01 |
| | tor8: I'm not convinced that was a conscious decision. | 13:21.52 |
| riki | hi | 13:22.45 |
| ghostbot | Welcome to #ghostscript, the channel for Ghostscript and MuPDF. 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. | 13:22.45 |
| tor8 | sebras: correct. | 13:22.49 |
| riki | is here somebody to help me with page orientation for ghostscript printing from C# | 13:23.31 |
| | ? | 13:23.38 |
| kens | We can't tell you anything about C#, we can possibly help with Ghostscript. If your question involves a C# wrapper of some kind you'll probably have to directi it to the authour of the wrapper in the first instance | 13:24.24 |
| sebras | tor8: that choice means that almost all calls should be declared "throws Exception, TryLaterException". | 13:24.49 |
| | tor8: and I'm not sure we want to do it that way.\ | 13:25.01 |
| riki | Ok, other qustion.. | 13:25.30 |
| sebras | can we use the code from fz_throw() to distinguish what exceptions we want to throw as checked and which ones we want to throw as unchecked perhaps? | 13:26.03 |
| | tor8: doesn't really resolve the issue with the declarations though as they are done at compile-time. | 13:26.20 |
| riki | I have tried oll switches, and I need to page to be prindnted horizonataly, but it is still vertical.. | 13:26.46 |
| | List<string> switches = new List<string>(); switches.Add("-empty"); switches.Add("-dPrinted"); switches.Add("-dBATCH"); switches.Add("-dNOPAUSE"); switches.Add("-dNOSAFER"); switches.Add("-dNumCopies=1"); switches.Add("-sDEVICE=mswinpr2"); //switches.Add("-sOutputFile=%printer%" + printerName); switches.Add("-sPAPERSIZE = a4"); //switches.Add("-dAutoR | 13:26.50 |
| tor8 | sebras: right. | 13:27.01 |
| kens | riki: Like I said, can't help you with C# | 13:27.13 |
| | You have not said what the input is, PDF or PostScript. | 13:27.37 |
| sebras | tor8: so for now I'll do the naive thing and do throws on everything unless we can come up with a better approach. | 13:27.38 |
| kens | I also very much doubt if you have tried *all* switches, Ghostscript has rather a lot. | 13:27.59 |
| tor8 | this all depends on what we want to force the user of mupdf to do | 13:28.03 |
| riki | Ok, so generaly, what is the setting to print page landsacape? | 13:28.17 |
| sebras | tor8: oh, and do you mind if I use java.io.IOEXception for the buffer classes when unable to allocate bytearrays/whatever..? | 13:28.23 |
| kens | You can set a fixed media size, by using -dDEVICEWIDTHPOINTS and -dDEVICEHEIGHTPOINTS and -dFIXEDMEDIA | 13:28.30 |
| sebras | tor8: yeah, I realize, and I'm not sure myself. :) | 13:28.41 |
| kens | Then use -dPDFFitPage or -dPSFitPage or -dEPSFitPage depending on the type of input | 13:28.55 |
| tor8 | for now I'd make TryLaterException a subclass of RuntimeError and throw RuntimeErrors (which are unchecked) so we don't have the conflict of throwing undeclared checked exceptions from JNI | 13:28.56 |
| riki | Ok, thanks.. | 13:29.11 |
| tor8 | sebras: I don't think much would be gained by having all java calls to mupdf have to catch exceptions explicitly | 13:29.55 |
| | most of the mupdf errors are unexpected runtime errors | 13:30.06 |
| | if we want to change that, we should go through and start classifying FZ_ERROR_GENERIC codes into something more useful | 13:30.30 |
| riki | Do you think, if the PDF, does not have a a landsacpe orientation, it could be a porblem, even if the ghostscript seetings are fine? | 13:30.31 |
| sebras | tor8: agreed. | 13:30.38 |
| tor8 | FZ_ERROR_SYNTAX for invalid files, for one | 13:30.49 |
| kens | riki your main problem is that you are using the mswinpr2 device I suspect. | 13:30.53 |
| | Are you trying to use media from a different tray or something ? | 13:31.19 |
| sebras | tor8: though due to the... interesting nesting of fz_*() and pdf_*() then I guess all call will return the most devious exception anyway. despite having done a better classification. ;) | 13:31.24 |
| | tor8: FZ_ERROR_SYNTAX is definitely a good idea. | 13:31.35 |
| riki | yes, switches.Add("-sDEVICE=mswinpr2"); | 13:31.36 |
| | do you know how to fix it? | 13:32.06 |
| kens | Yes I see that, but my question was whether you are trying to use media from a tray other than the printer default ? | 13:32.10 |
| tor8 | sebras: agh. something in the past month or two has broken 'mutool create' | 13:32.20 |
| sebras | tor8: oh? how so? | 13:32.34 |
| tor8 | pdf_add_image, line 313 uses doc->resources->image ... but for some reason doc->resources is NULL nowadays | 13:33.07 |
| sebras | tor8: I never notice that because I rarely use mutool create. so i probably messed up. | 13:33.12 |
| riki | It is set as defualut printer for windows.. | 13:33.17 |
| sebras | tor8: oh, that one! | 13:33.20 |
| | tor8: I have been debugging that one. | 13:33.24 |
| | tor8: wait... | 13:33.29 |
| riki | It prints horizontali without problems.. | 13:33.39 |
| kens | riki I'm not asking about the *printer* I'm asking about the media. Are you trying to use something other than the default tray ? Landscape suggests you are, most printers default to portrait | 13:34.01 |
| | riki I don't think I understand your problem. Why do you want to print landscape ? | 13:34.33 |
| sebras | tor8: bug 696892 | 13:34.43 |
| tor8 | right. when did we use to init the resource tables before that, and why was it removed? | 13:36.00 |
| riki | hmm, good point, do you think, if the printer has a default setting for horizontal printing, it woould not print it verticaly, even if it set in ghostscript.. | 13:36.08 |
| sebras | tor8: has it been? | 13:36.17 |
| kens | riki I have no idea what you are talking about | 13:36.19 |
| | What is hte format of the input file ? (PDF or PostScript ?) WHat is the media of the input file (size and orientation) ? What is the media of the printer ? | 13:37.21 |
| sebras | tor8: that bug tripped font handling in annotations which needed doc->resources to be != NULL before the call in pdf_create_document() to init doc->resources happened. | 13:37.39 |
| | tor8: but I note that you mention pdf_add_image now.. | 13:37.49 |
| tor8 | sebras: yeah. in a completely different use case. | 13:38.48 |
| sebras | tor8: sorry for the noise. | 13:38.57 |
| tor8 | the one you ran into was a pdf being *edited* | 13:38.58 |
| | this is for a pdf being created from scratch | 13:39.07 |
| | when creating a pdf from scratch, we may never create a pdf device | 13:39.25 |
| riki | OK, I just need to print PDF landscape, PDF.. So do not think about C#, just what is the setting for that, I already tried all from http://stackoverflow.com/questions/3089773/how-to-change-page-orientation-of-pdf-ghostscript-or-postscript-solution-neede | 13:39.40 |
| sebras | tor8: not really edited, the annotation changed state itself, but yea. | 13:39.42 |
| tor8 | I think the right solution is to init the tables when both opening a PDF, and creating one from scratch | 13:39.48 |
| kens | riki there is no 'setting for that' | 13:39.57 |
| riki | Ok, so it takes a PDF and print it as it comes? | 13:40.37 |
| kens | And you are complicating the issue by using the mswinpr2 device and talking about a physical printer | 13:40.41 |
| | OK so you are talking about PDF input, at last an answer. | 13:41.03 |
| | The PDF requests a specific media size. Ghostscript will (normally) select from its available media and render teh content of the PDF to that media. | 13:41.32 |
| sebras | tor8: right, because mutool create doesn't prepare a display list and feed it through a pdf device to create the pdf | 13:41.34 |
| | tor8: I didn't think about that case. | 13:41.40 |
| | tor8: and obivously neither did rjw | 13:41.56 |
| kens | So normally, because the media is effectively infinte (file format output), the resulting image file will be the orientqation of the input, and sized according to the size of the media and the resolution requested. | 13:42.25 |
| | That can be altered in a variety of ways | 13:42.36 |
| | However, you are also talking about the mswinpr2 device, which is dependent on the characterisitics of a physical printer, as described by a device driver in Windows. | 13:43.07 |
| | And that varies depending on the printer and the device driver. | 13:43.18 |
| riki | Ok, guys, yes, this is a first time I am using this library and so I'm not such a expert as you are about this.. | 13:43.29 |
| kens | So I cannopt sensibly answer your question unless you give me more information | 13:43.32 |
| | So here are the questions in little pieces: | 13:43.50 |
| | 1) What is the input format ? | 13:43.55 |
| riki | wait a second i will be right back.. | 13:44.46 |
| sebras | tor8: re: exceptions: I have tested throwing 2+ exceptions from a JNI-method and only the last one is reported (no surprises) | 13:45.11 |
| | tor8: re: exceptions: I have tested throwing exceptions from an object constructor and the finalizer is called (also not very surprising) | 13:45.49 |
| | tor8: re: exceptions: I have tested causing the new operator to end up with OutOfMemoryError and also in this case the finalizer is called (-"-) | 13:46.25 |
| tor8 | serbas: yes, the constructor operates to initialize an already created object and any exceptions halfway through initialization would want the finalizer to run | 13:47.15 |
| sebras | tor8: besides OutOfMemoryError the new operator may throw InstantiationException when the class you try to do new on is abstract or an interface. | 13:47.15 |
| | tor8: right, but that means that we have problems if we do obj = NewObject(..., cs) if (!obj) fz_throw_java(); else fz_keep_colorspace(cs); because the keep is too late and so the finalizer which _will_ run will actually drop things that were never kept in the first place. | 13:48.39 |
| | tor8: in the case of OutOfMemoryError or an exception thrown by the constructor. | 13:48.58 |
| | tor8: if the JVM throws InstantiationException due to the code doing new on an abstract class or an interface then I can't imagine the finalizer being run (would there even be one?) though. since we have no abstract classes or interfaces I ignore this type of error right now. | 13:50.18 |
| | tor8: my immediate fix is to move the keep to _before_ the call to NewObject() then the finalizer will do all the cleanup. | 13:51.00 |
| tor8 | right. so then we should call obj = NewObject(..., fz_keep_colorspace(cs)) | 13:51.56 |
| | so, to_Annotation() etc should be fixed to keep before calling the constructor? | 13:52.45 |
| sebras | tor8: we could, but those lines are awfully long already so I prefer to have a local variable but the order would be the same. | 13:52.45 |
| | tor8: indeed. | 13:52.52 |
| | tor8: I have the patches locally and I have tested them and it seems to work fine. | 13:53.07 |
| tor8 | so the if (jobj == NULL) lines, what do they accomplish then? | 13:53.15 |
| sebras | tor8: which one? | 13:53.30 |
| tor8 | fz_keep_annot(); return NewObject(); | 13:53.33 |
| | the ones after the NewObject call that just cals fz_throw_java | 13:53.48 |
| sebras | right. | 13:53.54 |
| tor8 | oh wait, no, those are throwing *fitz* exceptions | 13:54.01 |
| sebras | tor8: they detect if the NewObject() call threw OutOfMemoryError basically. | 13:54.08 |
| tor8 | that should be if (ExceptionCheck) ? | 13:54.13 |
| sebras | tor8: they are... these are the ones that become roundtrip Java->fz->Java exceptions. | 13:54.31 |
| | tor8: well... it depends. | 13:54.39 |
| tor8 | sebras: right. because they are calling java stuff inside a fz_try context that does more complicated stuff | 13:55.06 |
| sebras | tor8: we want to detect in the caller to to_Annotation() that it failed some how. previously we'd done that through fz_throw() but I'm thinking that it may work to check for NULL on the return value. | 13:55.28 |
| | tor8: indeed. | 13:55.36 |
| | tor8: so actually since we do fz_throw_java() we _hide_ the original error by overwriting it. | 13:56.24 |
| | exception. | 13:56.27 |
| tor8 | Page_getAnnotations, I'd probably toy with splitting that big fz_try and make individual calls to fitz be wrapped in fz_try, and not mix fitz and java calls | 13:56.27 |
| sebras | tor8: yeah, now that I have a better grasp of these exception thingies I concur. | 13:57.07 |
| tor8 | most of the other to_Xxx functions are called in the device functions (that are called from fz_run_page to call into a java device) | 13:57.35 |
| sebras | tor8: I assume that if e.g. NewObject() throws OutOfMemoryError we don't want to overwrite that exception with an exception of our own, right? | 13:57.52 |
| tor8 | nope, we just want to bail | 13:58.11 |
| sebras | tor8: yeah, so quite possibly you could copy the code from to_ColorSpace() in to that non-device callback code. I think that makes more sense. | 13:58.55 |
| tor8 | the to_Xxx_safe calls are ones that are designed to not round-trip exceptions because they're not being called from the fz_java_device | 13:59.27 |
| sebras | tor8: still hadn't reallized that, but that makes sense. | 14:00.08 |
| riki | hi, I set a default paper orientation, for my HP printer to landscape, and it works.. | 14:00.18 |
| tor8 | sebras: it all depends on who is calling who | 14:00.28 |
| sebras | basically fz_throw_java() should only be called inside device-callbacks. | 14:00.30 |
| riki | it prints correctly.. | 14:00.35 |
| sebras | tor8: yes, I know. | 14:00.37 |
| tor8 | fz_java_device methods are called from fitz, so want to get fitz exceptions | 14:00.43 |
| | same with the callbacks in Text_walk, and Path_walk, and other iterators | 14:00.55 |
| kens | riki well that was the point I was trying to get to | 14:00.57 |
| riki | but, mi boss said, it is not a soulution, it is a hack.. | 14:01.19 |
| sebras | tor8: right. | 14:01.19 |
| tor8 | getAnnots and getLinks are the new unexplored territory | 14:01.21 |
| sebras | tor8: I'll get back to those two. | 14:01.34 |
| tor8 | where we are doing mixed fitz/java calls | 14:01.35 |
| | to flatten a linked list into a java array | 14:01.52 |
| sebras | tor8: I also found some android page that mentions that you cannot trust the return value from CallObjectMethod() unless you _first_ check if there's been an exception. which we need to do inside fz_throw_java() since it calls some method. | 14:02.24 |
| kens | riki it is not a hack. THe mswinpr2 device does not alter the settings of the printer, *unless* you opt to open the pritner dialog and reconfigure the printer. It uses the default settings of the printer. THis is by design. Note that the mswinpr2 device is absolutely *not* intended as an unattended print server. | 14:02.34 |
| riki | it means, this software wil be installed on thousends of computer, an we can hardly fore eac user to set the printer manualy for landscape.. | 14:02.43 |
| kens | If you want that you can of course create it using Ghostscript, but you will have to do some work. | 14:02.50 |
| | riki Are you aware that Ghostscript is AGPL sopftware ? Are you planning to release your software under the AGPL ? | 14:03.15 |
| riki | This solution is commercial, does it mean, we cant use ghostscript? | 14:05.07 |
| kens | You owuld need a commercial Ghostscript licence from Artifex | 14:05.19 |
| riki | Ok, I have to ask my boss.. | 14:05.43 |
| | Ok, boss said, we will probably byy it, but has question, what are this settings for: | 14:14.00 |
| | dAutoRotatePages=/None -- retains orientation of each page; * -dAutoRotatePages=/All -- rotates all pages (or none) depending on a kind of "majority decision"; * -dAutoRotatePages=/PageByPage -- auto-rotates pages individually. | 14:14.33 |
| kens | -dAutoRotatePages only affects the pdfwrite device | 14:14.56 |
| riki | it has nothing to do with printing to physical priner? | 14:15.02 |
| kens | No, nothing, it is specific to production of PDF files | 14:15.15 |
| | THat's why its covered in the pdfwrite-specific section of the documentation | 14:15.54 |
| riki | ok guys, thank you a lot, I really appreciate you help... | 14:16.26 |
| kens | By the way, if you are using Ghostscript.NET I believe you will need a licence for that too | 14:16.43 |
| riki | https://github.com/mephraim/ghostscriptsharp/blob/master/MIT-LICENSE.txt | 14:18.34 |
| kens | OK that's Ghostscriptsharp, not Ghostscript.NET | 14:18.46 |
| | Ghostscript itself is AGPL, so you would need a commercial licence if you intend to seel it. | 14:19.46 |
| riki | Ok, I will let my boss known about it | 14:20.32 |
| sebras | http://xkcd.com/1726/ indeed. | 14:37.11 |
| | tor8: ok, thanks for the discussion. I'll sleep a bit now and continue on github/wip tomorrow. | 14:38.50 |
| ray_laptop | riki: still here? | 17:01.24 |
| | riki: if you set -dFIXEDMEDIA and -dFitPage then gs should rotate pages for the best fit to your paper size (-sPAPERSIZE=a4) -- the printer should remain set for 'portrait'. GS will take care of rotating input pages and scaling as needed to fit the output (portrait a4) | 17:03.03 |
| | riki: if one of the pages in the input to GS happens to be landscape i.e., 842 x 595, then GS will rotate it for you. | 17:05.40 |
| | Forward 1 day (to 2016/08/30)>>> | |
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