Re: Size of PDF with lots of images
Simon Sapin <[email protected]>
| Newsgroups | gmane.comp.lib.cairo |
|---|---|
| Message-ID | <[email protected]> |
On 16/01/2014 19:57, Adrian Johnson wrote: >> If your images were in a format that the PDF backend supports [2] (which >> includes JPEG but not PNG), you could use cairo_surface_set_mime_data() >> to have cairo store the original image data (almost) as-is in PDF, >> without re-compressing. Although I expect that lossy JPEG may not look >> nice for these specific images. > Yes, jpeg images are the most likely reason for the increase in size. > > I'm not sure what you mean by "lossy JPEG may not look > nice for these specific images". The jpeg data is stored exactly as > provided to cairo_surface_set_mime_data() so there will be no loss of > image quality. Behdad’s images are PNG here, not JPEG. They are computer-generated with sharp edges, the kind where JPEG does not do well. -- Simon Sapin -- cairo mailing list [email protected] http://lists.cairographics.org/mailman/listinfo/cairo