#Gimp on mac making gifs transparent how to#

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#Gimp on mac making gifs transparent generator#

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I have been using solid bodies for a long time now and have not seen this.Ī co-worker just came up with the same thing? View 1 Replies The hole came through but the thread did not?Right now I have SP1 installed. I just did a Circular Pattern of a threaded holes to a second solid body.

In general, from Photoshop, whatever format you save to, it is a good idea to use Save for Web if the image is intended for the web.AutoCAD Inventor :: Patterned Threaded Hole In Solid Body Oct 23, 2012 Otherwise, Photoshop insists on saving a 24 bit image, with an alpha channel if you use transparency. The only way to save an 8 bit png from photoshop is to use the export for web feature:įile -> Save for Web (Control-Alt-Shift-S) Photoshop screws up PNG output with things like bad gamma.

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You can also optimize download size by reducing the number of colors in the output and disabling dithering in the conversion, though don't do it at the expense of the picture looking good.

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Note: if a wiki has a different background color on their imageboxes, use it in the HTML code box rather than '#CCCCCC'Īn 8-bit PNG (or GIF) will usually be about half the size of a 24-bit truecolor PNG of the same image. Then, depending on the size of the file, you can choose to interlace it or not (your choice, but big files would be better smaller), and then save it to the location of your choice. Click the colored box, and enter '#CCCCCC' in the HTML code box. Select 'Palette-based', and then select the 'Optimized Octree' palette, and then in the Transparency tab, select 'Single-color transparency', and select 'Areas that match this color'. Then (this is the easy part) go to File/ Export/ PNG Optimizer. Load up the transparent PNG, and just like in the GIMP, create a #cccccc layer underneath. I'm not really sure about that one, though. This way IE will display the saved background color while better browsers will display transparency as intended. But, y'know, GIFs are bad or something.Īlternatively, with the Gimp you can make a normal (unindexed, RGB image with alpha channel) PNG and select the option to save the background-color. Note that these same steps work for making a GIF if you really want to. when superimposed on the expected backgrounds this will look good enough.

Now there are harsh edges between transparency and the very light gray halo around your pretty logo. Use the select by color tool to select the gray and clear it to transparency (you might have to add an alpha channel first, I forget). Before converting to indexed color, force the image to have a solid background by creating a new layer fill it with color #eeeeee (light gray), and flatten the image. You can fake this for most purposes as long as you know what kind of backgrounds the image will cover an icon or logo for a MediaWiki site will usually only sit over backgrounds of white, light grey, or light yellow. Often this will produce ugly harsh edges, which you don't want. The default settings of the window that pops up should be okay hit 'OK' and then save your new file.)įor more details, go here The Gimp Nasty edges (Under the 'Image' menu, highlight 'Mode' and then select 'Indexed.'. If you're stuck with a 24-bit transparent PNG with an alpha channel and want it to be Internet Explorer-friendly, you can load it up in the Gimp and convert it to indexed mode.

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The Gimp is a free program for manipulating digital images it's available for Linux and Unix (including Mac OS X) and Windows.