Search found 23 matches

by mmlenz
2012-06-14T19:12:49-07:00
Forum: Users
Topic: building --with-gslib what does this actually accomplish?
Replies: 12
Views: 18894

Re: building --with-gslib what does this actually accomplish

Has there ever been discussion of switching to poppler? It is surprisingly fast and renders pdfs very well. Unfortunately it's completely undocumented :)
by mmlenz
2012-06-14T09:38:36-07:00
Forum: Users
Topic: building --with-gslib what does this actually accomplish?
Replies: 12
Views: 18894

Re: building --with-gslib what does this actually accomplish

IM uses GS if its available regardless. But what exactly does --with-gslib actually do? Because GS works with IM either way.
by mmlenz
2012-06-14T09:09:48-07:00
Forum: Users
Topic: building --with-gslib what does this actually accomplish?
Replies: 12
Views: 18894

building --with-gslib what does this actually accomplish?

I thought originally that it allowed IM to process PDF documents without launching the 'gs' command but I've noticed that on the debian/ubuntu distributed packages (which I'm sure use --with-gslib during their builds because they have deps on gslib) I still see a 'gs' process when working with PDF d...
by mmlenz
2012-06-01T10:58:27-07:00
Forum: Developers
Topic: Wrong JPEG VERSION: Library is 62, caller expects 80
Replies: 11
Views: 42363

Re: Wrong JPEG VERSION: Library is 62, caller expects 80

Let me explain what I'm doing and maybe you can offer some advice. 1. I have no locally built software on this machine. 2. the only jpeg lib installed anywhere (I did a full file system find for any references to libjpeg) on this system is 6.2 3. I am building ghostscipt and imagemagick on debian 6....
by mmlenz
2012-06-01T09:20:58-07:00
Forum: Developers
Topic: Wrong JPEG VERSION: Library is 62, caller expects 80
Replies: 11
Views: 42363

Re: Wrong JPEG VERSION: Library is 62, caller expects 80

I'm having this same problem only reversed. There is no trace of libjpeg 8 on my system and I still get:

convert: Wrong JPEG library version: library is 80, caller expects 62 `0-z.jpg' @ error/jpeg.c/JPEGErrorHandler/316.

I also have no libtest that I know of that has a dependency on libjpeg8
by mmlenz
2012-05-30T10:00:06-07:00
Forum: Users
Topic: converting pdf to fax tiff (get a bit better quality?)
Replies: 3
Views: 8025

Re: converting pdf to fax tiff (get a bit better quality?)

yeah, I bumped it to 4x that and there was little or no improvement. I'm wondering if maybe my pdf viewer applies some kind of smoothing to the actual image. I used pdfimages to extract some of these and they look nearly identical to the output produced by convert.
by mmlenz
2012-05-30T08:42:07-07:00
Forum: Users
Topic: Poor pdf to png quality - - how to improve?
Replies: 6
Views: 22682

Re: Poor pdf to png quality - - how to improve?

I've seen a few people mention pdfimages from xpdf (its actually part of poppler-utils now). I am NOT seeing it extracting a lossless copy of the image. Looking at the image in the PDF it is still better quality than the resulting image it extracts. Why I have no idea.
by mmlenz
2012-05-30T08:17:16-07:00
Forum: Users
Topic: converting pdf to fax tiff (get a bit better quality?)
Replies: 3
Views: 8025

converting pdf to fax tiff (get a bit better quality?)

I'm using the following: convert -density 204x196 -units PixelsPerInch in.pdf -alpha remove -resize '1728x2156!' -compress Fax %d-out.tiff Which is a command I found in another post on the forum. The resulting tiff file isn't horrible but the text is a bit jagged. Any recommendations for parameters ...