INKSCAPE TRANSPARENZ PDF

By using our site, you acknowledge that you have read and understand our Cookie Policy , Privacy Policy , and our Terms of Service. Super User is a question and answer site for computer enthusiasts and power users. It only takes a minute to sign up. How do I need to change the transparent objects in an inkscape file to be able to export them correctly to pdf?

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The transparent parts of images become black when exported into the emf-format. I am using Inkscape 0. I consider the Inkscape emf export fare superior to Adobe Illustrator and are very glad about the new version. Thanks for the great wok! Reproduced with Inkscape 0. In modern bitmap formats one specifies for each pixel RGB and in addition a 4th value that sets the transparency.

In such a bitmap any color can have any transparency. No EMF record type supports that. EMF format does support a more limited form of transparency where a regular RGB image is defined and in addition one color is set as "transparent". This is essentially the same thing as "green screening" in a movie, that one color is completely transparent and all others are completely opaque.

In theory one could extend the format in an incompatible manner by storing the usual transparency byte there. Going the other way would be trivial, but it has not come up before now, since nobody has yet posted an example generated by any other application that uses this record type.

The EMF output you are seeing does appear to be correct for the current implementation. The transparent image does appear to have black pixels in the areas shown - but with an opacity of 0.

This is very odd, since a clipped path type object works, but adding an image and clipping both the path and the image is broken. I will look into that. At home I did a short test with CorelDraw X6 and transparent image areas.

Corel preserves the tranparent parts in the image, but the transition seems harder and more like a sawtooth effect due to the limitation of emf. I could not open that cdr properly no coreldraw, and Inkscape does a bad job of it - the star image is surrounded by a white, not transparent, region.

That EMF consists of a huge number of polybezier circular rings to produce the circular gradient which is then completely overwritten by an image of a blue star on a background with the same circular gradient. So CorelDraw does not preserve whatever transparency there was in the original drawing, it makes a bitmap of the screen image. The sawtooth effect is from a combination of the bitmapping and a lack of antialiasing.

The EMF it produces is also messed up, but in the expected way, since the gradient is entirely covered by the image, there is no reason whatsoever to have it in the EMF. I can tell you why that happened too. CorelDraw sent the objects to its output driver in the order bottom to top. So first it sent the gradient. Then it sent an image with transparent areas. The driver cannot send a transparency to EMF, so it bitmaps the part of the drawing within the bounds of the image and then sends that bitmap to the EMF.

If you are on windows get the programs EMF Explorer and metafile explorer this is the better of the two. You can find the downloads for these with Google. This bug affects 3 people. Comment on this change optional. Email me about changes to this bug report. Also affects project? Bug Description. Included is a Inkscape test file plus the resulting emf file. See original description. Tags: emf exporting Edit Tag help. Erich Taubmann etaubmann wrote on : 1. Inkscape test file plus resulting emf file Edit David Mathog - any chance you could take a look?

David Mathog mathog wrote on : 3. The short answer is that EMF does not support transparency very well. Erich Taubmann etaubmann wrote on : Re: [Bug ] Re: emf-export renders transparent image areas black 4. Corel X6 emf export. You can see the results in the contained zip file. David Mathog mathog wrote on : 5. See full activity log. To post a comment you must log in. Report a bug. You are not directly subscribed to this bug's notifications. Other bug subscribers Subscribe someone else. Bug attachments Inkscape test file plus resulting emf file edit Corel X6 emf export.

Inkscape Edit. Unassigned Edit. You need to log in to change this bug's status. Affecting: Inkscape. Erich Taubmann etaubmann wrote on :. David Mathog mathog wrote on :. Erich Taubmann etaubmann wrote on : Re: [Bug ] Re: emf-export renders transparent image areas black.

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The transparent parts of images become black when exported into the emf-format. I am using Inkscape 0. I consider the Inkscape emf export fare superior to Adobe Illustrator and are very glad about the new version. Thanks for the great wok! Reproduced with Inkscape 0. In modern bitmap formats one specifies for each pixel RGB and in addition a 4th value that sets the transparency.

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If you want to learn how I come up with logo design ideas, be sure to check out my Logo Design Academy - an interactive part video course where you will learn my entire creative process for coming up with logo ideas and implementing them. However, that method does not work because it does not output the file with a transparent background. The Inkscape Export menu will open either in its own window or docked to the side of your screen. It will look something like this…. Need a professional logo but have a limited budget?

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By using our site, you acknowledge that you have read and understand our Cookie Policy , Privacy Policy , and our Terms of Service. Graphic Design Stack Exchange is a question and answer site for Graphic Design professionals, students, and enthusiasts. It only takes a minute to sign up. You'll soon find out if it really has a background or not. If it does, then either you added it, or your printer's website has done something to the image.

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