CropTool is a MediaWiki tool for cropping images at Wikimedia Commons and other Wikimedia sites. It supports JPEG, PNG, TIFF, SVG, WebP, and (animated) GIF files, and can also extract single pages from DJVU and PDF files as JPEG for cropping. CropTool is inspired byUser:Cropbot, but adds some new features, such asOAuth for authorization and automatic border detection. It runsat Toolforge, and the source code is availableat GitHub. Recent usage of the tool is availablefrom recent changes.
After activation, it will appear in the “Tools” menu of the left column.
Alternatively: go totoolforge.
| 1. Here is an image that should have its border removed. Start by clicking “CropTool” in the “Tools” menu. |  |
| 2. To use CropTool, you need to authorize it to use your Wikimedia Commons account usingOAuth. |  |
| 3. This will take you to a secure MediaWiki OAuth server. Note that your password is never transmitted to CropTool. |  |
| 4. Make a selection with the cursor and press “Preview”. In this case, we need to make an exact (Precise mode) crop, since we want to keep as much of the image as possible, while removing the border. Note that in many cases an inexact (Lossless mode) is completely sufficient and recommended. |  |
| 5. Looks good, so we can go ahead and press “Upload”. |  |
If the CropTool is not presentas a gadget in your local Wikimedia project (like Wikipedia), you can install it (manually in your user JavaScript settings) with following code:
mw.loader.load('//commons.wikimedia.org/w/load.php?modules=ext.gadget.CropTool');
If you want to have CropTool active on all Wikimedia projects you may use the following code atm:Special:MyPage/global.js. Don't forget to disable CropTool on all projects before you add it globally.
if(mw.config.get('wgNamespaceNumber')===6&&mw.config.get('wgIsArticle'))mw.loader.load('//commons.wikimedia.org/w/index.php?title=MediaWiki:Gadget-CropTool.js&action=raw&ctype=text/javascript');
?action=purge to theURL and then press↵ Enter. If that doesn't solve the problem, follow the instructions atw:Wikipedia:Bypass your cache/Simple instructions.If you encounter other problems, please checkCommons talk:CropTool andhttps://github.com/danmichaelo/croptool/issues and write a bug report if necessary.