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Picture format conversion

Instructions for picture format conversion

1. Upload the picture you need to convert.
2. Select the picture format you want to convert.
3. Click "Start Conversion", and after a while, you will be prompted that the image conversion is successful.
4. Right click Save Picture As to download the converted picture.

Introduction to webp format

  • WebP (pronounced: weppy) is a picture file format that provides both lossy compression and lossless compression (reversible compression). Derived from the video coding format VP8, it is considered a sister project of WebM multimedia format. It was developed by Google after the purchase of On2 Technologies and released under BSD license terms.
  • The maximum number of pixels supported by WebP is 16383x16383. Lossy compressed WebP only supports 8-bit YUV 4:2:0 format. The lossless compression (reversible compression) WebP supports VP8L encoding and 8-bit ARGB color space. Both lossy and lossless compression support alpha transparent channel, ICC color configuration, and XMP interpretation data.
  • WebP has two modes: static and dynamic. Animated WebP supports lossy and lossless compression, ICC color configuration, XMP interpretation data, and alpha transparent channel.

Introduction to jpeg format

  • JPEG (Joint Photographic Experts Group) is a common image format. This standard is formulated by the International Organization for Standardization (ISO) and is a compression standard for continuous tone still images. JPEG format is the most commonly used image file format, with the suffix of. jpg or. jpeg.
  • JPG supports a very high compression rate, can easily process 16.8M colors, and can display full-color images. In the process of image compression, the image format can be freely selected between the minimum file size (the lowest image quality) and the maximum file size (the highest image quality). The file size of this format is relatively small, and the download speed is fast.

Introduction to png format

  • PNG (Portable Network Graphics), a portable network graphics, is a bitmap format using a lossless compression algorithm. It supports three color schemes: index, grayscale, RGB, and alpha channel. Its design purpose is to try to replace GIF and TIFF file formats, while adding some features that GIF file formats do not have. PNG uses a lossless data compression algorithm derived from LZ77, which is generally used in JAVA programs, web pages, or S60 programs because of its high compression ratio and small size of generated files. PNG files have the extension. png