| | <<<Back 1 day (to 2016/05/17) | 20160518 |
| halabund | Ghoscript comes with a pdf2ps utility, but not a pdf2eps one. Is there any special reason for this? Are there issues with converting single-page PDFs to EPS files? | 10:33.07 |
| | Or should I just use the epswrite device and call âgsâ directly? | 10:33.46 |
| Robin_Watts | yes, that. | 10:35.27 |
| halabund | Thanks | 10:35.30 |
| Robin_Watts | Urm... is the epswrite device still maintained, actually? kens would know, but he's not here at the moment. | 10:36.19 |
| chrisl | epswrite is gone - eps2write still exists, and is maintained | 10:46.56 |
| Robin_Watts | Thanks chrisl | 10:47.56 |
| chrisl | FWIW, the eps2eps script might work - not sure. But I'd discourage use to the scripts anyway - they hide too much | 10:49.28 |
| halabund | Oops, I was looking at the old documentation. | 11:04.00 |
| chrisl | Basically, (e)pswrite was crap, (e)ps2write is less crap ;-) | 11:08.49 |
| halabund | âFor example, for personal use, use without redistribution, and use with no technical support the GNU Affero Public License (AGPL) download is your choice.â <â Is it not possible to redistribute AGPLâd software (like it is with GPLâd software)? | 11:20.56 |
| | http://ghostscript.com/download/gsdnld.html | 11:21.01 |
| | Just curious. | 11:21.03 |
| Robin_Watts | halabund: Yes, it's perfectly possible to distribute GNU AGPL software. | 11:21.37 |
| | But the act of distribution places restrictions upon you. | 11:21.48 |
| halabund | Isnât that just to also distribute the source, or link to it? | 11:22.04 |
| Robin_Watts | (A few more than the GPL does) | 11:22.11 |
| | halabund: No. | 11:22.14 |
| | The AGPL includes restrictions for when you use Software as a Service. | 11:22.43 |
| | Essentially, that statement doesn't say "If you distribute software then you can't use the AGPL version." | 11:23.12 |
| | It says "If you don't distribute software, then certainly the AGPL will be fine for you." | 11:23.29 |
| | If we tried to form a statement that said explicitly under what conditions you could use the AGPL version, we'd end up reproducing the entire AGPL license :) | 11:24.47 |
| halabund | OK, got it. | 11:26.23 |
| | I am trying to convert a PDF to EPS, like so: | 11:40.08 |
| | gs -dSAFER -dBATCH -DNOPAUSE -sDEVICE=eps2write -r1200 -sOutputFile=foo.eps Fig2.pdf | 11:40.10 |
| | Ghostscript appears to rasterize everything, even if I omit -r1200. | 11:40.29 |
| chrisl | Don't do "-r" | 11:40.35 |
| halabund | Why does this happen and how can I avoid it? | 11:40.39 |
| | The PDF contains some translarency, but most objects donât use it. | 11:40.50 |
| | *transparency | 11:40.56 |
| chrisl | Doesn't matter, once the there's transparency, that's taht | 11:41.07 |
| | that, even | 11:41.10 |
| halabund | OK, so the presence of *any* transparency causes the *entire* figure to be rastrized? | 11:41.47 |
| chrisl | Yes | 11:42.05 |
| halabund | That means I have to be extra careful to avoid transparency, and if I cannot, I can just convert to TIFF instead of EPS, righ? | 11:42.10 |
| | (these are the two accepted formats) | 11:42.25 |
| chrisl | Yeh - depends on what the other requirements are, though | 11:42.52 |
| halabund | I hate it when they require EPS instead of PDF. It is always so much pain. | 11:44.12 |
| | chrisl: Why did you tell me not to use -r? Does it cause any problems? There are other figures which get only partially rasterized, and Iâm fine with that. However, I want to control the output resolution of the rasterized parts. -r1200 appeared to work fine. | 11:44.57 |
| chrisl | halabund: pdfwrite/ps2write/epswrite default to 720 dpi, which *generally* produces decent results across the most devices. | 11:46.08 |
| halabund | OK | 11:46.19 |
| | yes, the default does look quite good | 11:46.35 |
| chrisl | It really depends on what your target device is | 11:46.56 |
| | For example, if you are producing Postscript *only* to send to a 1200dpi printer, you could probably get away with using -r600, get perfectly good output, and have a smaller file | 11:48.17 |
| rayjj | in case halabund is interested, using -r___ with a large value (like -r1200) will *ONLY* affect the rasterized portions of the result from pdfwrite/ps2write/eps2write -- the vector objects (paths, etc.) are really not affected visibly and don't change the file size substantially. | 19:39.43 |
| | the only difference is that the coordinates internally are managed as res/256 fixed point so the precision will differ | 19:40.30 |
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