#Make background transparent with graphicconverter windows

If so, then I'm guessing that some combination of Adobe for Windows and the the Windows clipboard is causing it to fail for me. Vic, if you open Bestiary 1, select the shoggoth picture, and paste it, does it come out correct for you? I can fiddle with the threshold values for 'how close' to select pixels, but that just creates white spots in the dark areas. I think the problem is that while Acrobat and others can render using the alpha channel, they flatten it somehow when doing a copy/paste, because even in Gimp, I can't keep the alpha channel, and there's no single pixel color I can select that selects the 'correct' pixels. A perfect example is the shoggoth from Bestiary 1 (not that I've used one recently or anything). It has a function called 'Flatten Alpha Channel,' which sets the background to whatever color you have currently selected as the background color in your toolbox and then permanently renders the image against that color. Second, you could try to paste the image into a different application-ideally one that understands alpha channels and transparency, or at least one that defaults to white instead of black.įor specific advice, I can only tell you what I use: Graphic Converter for OS X. That probably means some kind of image editing software.

#Make background transparent with graphicconverter how to

When you go from software or file formats that use alpha channels and transparency to software or file formats that don't, something along the way will decide how to convert it (depending on your configuration, it's probably either the OS itself or the application you're pasting into).įirst, you could try to find some software that lets you control how that transition is handled. The part you're seeing as black is what's called an 'alpha channel,' which is used (among other things) for transparency. PS: By the way, I'm using Acrobat Reader 8 on a Windows7 machine.

#Make background transparent with graphicconverter pdf

I think there's something floating around in the alpha channel of Paizo's PDF images. For example, I've pulled images from WotC's 'Dawn of Defiance' Star Wars campaign adventures with no problems. The reason is that other other PDFs I extract images from (using the same tools) come out with white backgrounds.

I'm pretty sure this is something Paizo is doing (probably unintentionally). I also do the same thing with it: bucket fill the black to white and zap the pixels that don't cooperate. When i pull the image out of the PDF, it has a black background in place of the transparency. Looks like I'm stuck with the 'manual fix' method, though the 'threshold fill' in the Gimp makes it a little less painful. I just do it enough to make it look ok.Ĭlearly they do something funky with the images in the PDF, since they're transparent in the PDF. That is caused because they don't make the background transparent I think, normal I have to zoom in myself and white out the junk Pixel by Pixel with what is left over after the fill.

Are you talking about the black field in the background that does not always all go away when you do a fill?