7/2/2023 0 Comments Scribus for mac 10.5.8$ mutool clean -a -d pdf_blur_test.pdf pdf_blur_test_aa. I guess the fix here is that when the object is rasterized, any opacity tag/attribute needs to be reset to 100% since the opacity is now baked into the bitmap. And hence it winds up much, much lighter than it should. So the opacity is baked into the bitmap when it is rasterized, but then somehow it gets applied not once but *twice* again when the bitmap is rendered. The circle uses an all-black image (object 14) with a mask at object 21, and the mask never goes above 7f. Changing *that* to 1 makes the bottom left circle look like how it's supposed to look. a0 is used for *both* the unblurred and blurred leftmost circles (I guess there is some deduplication /a1 is slightly different from 0.5 due to rounding).Īnd here we have another /a0 with opacity. Note the three opacity GStates (/a0, /a1, /a2). In the PDF, the page uses this resource dictionary: $ mutool clean -a -d pdf_blur_test.pdf pdf_blur_ test_aa. Instead, what happens on the Mac is Scribus starts up and displays the New Document dialog. Looking at an ASCII-ified PDF with mutool: I think the problem is the opacity is being triple-applied. After you import your PDF there, just ungroup until you are left without groups. Install unstable 1.5.x to test much improved PDF import. I highly recommend trying Scribus layout application to test that. 50% transparency ends up clipped (think about it as masking in Inkscape terms) with another 50% transparency and you end up with 75% transparency. Summary: Transparent image gets "clipped" with semi-transparent bitmap, which adds up. The instructions below will show you how to install Scribus using either of these methods. That PDF pattern is just transparent image. There are many ways to install Scribus on your Mac but the simplest methods are to download either the Scribus Disk Image (DMG) or the Scribus Package Installer (PKG). Period.Ģ) With opacity added on top of that effect (as is the situation with flag example), produced PDF looks like: Image (rasterized svg effect), one object group of that image clipped with PDF pattern (not to be confused with pattern you use in Inkscape and bitmap editing software). Inkscape has to rasterize every svg effect.ġ) Without added opacity, produced PDF looks like this: Image (rasterized svg effect). /rebates/&252fbrowsers-for-mac-1058. Here is what I think is the problem, but I still don't know whose bug is that. I had to deal with this issue for many years.
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