Comment 21 for bug 164233
Revision history for this message
| Adrian Johnson (ajohnson-redneon) wrote Re: [Upstream] [hardy] Opening pdf with smooth gradient in Evince displays striped | #21 |
© 2004
Canonical Ltd.
•
Terms of use
•
Data privacy
•
Contact Launchpad Support
•
Blog
•
Careers
•
System status
•
bbfa235
(Get the code!)
Test2.pdf is a postscript file, not pdf. So it will be rendered by ghostscript when viewed with evince.
The problem is caused by libreoffice. The "gradient" is actually a series of shaded rectangles. In fact the rectangles are not even correctly aligned. There is a tiny gap between each one. Cairo (used by evince) has a problem with showing lines between adjacent fills due to antialiasing. There is no easy way to fix this. And the small gaps between the rectangles caused by libreoffice will make the problem worse.
The best solution is for libreoffice to use PDF gradients to draw the shading.