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Thank you for uploading JR JB-10 station number.png! Did you know that Wikimedia Commons recommends the SVG (Scalable Vector Graphics) format for certain types of images? Scalable Vector Graphics are designed to look appropriate at any scale, and SVG images are easier to modify and translate, helping Wikimedia to distribute knowledge to all of the world. A lot of modern programs support SVG export. If you encountered problems or have questions, don't hesitate to ask me, a member of the Graphic Lab, or the Graphics village pump. However, it will be also an improvement if you can export (save) this image in PNG format without artefacts and upload. Uploading images in SVG format isn't mandatory, but it would help. (To avoid any misunderstandings, please don't just put raster images into a svg container as embedded raster.) Thanks, and happy editing!
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(Sorry to write in Engilsh)
CrossHatchさんが差し替えたFile:Nagoya Subway Logo V2 (Tsurumai Line).svgですが、jpgやpngなどのラスタ形式であるビットマップ画像を使っているためsvg形式（ベクタ形式）であるにもかかわらずベクタ方式の特性が生かせず拡大縮小でぼやけます。svg形式のファイルを差し替える際にはラスタ画像を使用しないようお願いします。--ButuCC (talk) 14:03, 3 August 2018 (UTC)
File source is not properly indicated: File:Number prefix Choshi.png
|This media may be deleted.|
A file that you have uploaded to Wikimedia Commons, File:Number prefix Choshi.png, is missing information about where it comes from or who created it, which is needed to verify its copyright status. Please edit the file description and add the missing information, or the file may be deleted.
If you created the content yourself, enter
If someone else created the content, or if it is based on someone else's work, the source should be the address to the web page where you found it, the name and ISBN of the book you scanned it from, or similar. You should also name the author, provide verifiable information to show that the content is in the public domain or has been published under a free license by its author, and add an appropriate template identifying the public domain or licensing status, if you have not already done so.Please add the required information for this and other files you have uploaded before adding more files. If you need assistance, please ask at the help desk. Thank you!