Dynapik offers a free online tool to change image types - no need to download anything. It's quick and easy to use. You can change your PNG8 images to WPG format. This tool works for both professionals and casual users. Convert your images to WPG in seconds.
PNG-8 (8-bit Indexed)
The lightweight champion for simple graphics, offering GIF-like sizes with PNG quality.
PNG-8 is a specific variant of the PNG format that uses an 8-bit indexed color palette, limiting the image to a maximum of 256 colors. This is the same color technique used by GIF, but PNG-8 uses the superior DEFLATE compression algorithm, resulting in files that are typically even smaller than GIFs. PNG-8 is the secret weapon of web optimization. For logos, icons, and simple illustrations that don't need millions of colors, converting a standard 24-bit PNG to PNG-8 can reduce file size by 60-80% with virtually no visual difference. It supports transparency, usually in binary form (like GIF), though some modern tools can create PNG-8 files with full alpha transparency.
In a PNG-8 file, each pixel is represented by a single byte (8 bits) which acts as an index into a palette (PLTE chunk) of up to 256 RGB colors. This is much more efficient than storing the full 3-byte RGB value for every pixel. Transparency in PNG-8 is typically handled by the `tRNS` chunk, which specifies a single color index as transparent (binary transparency). However, the PNG specification allows the `tRNS` chunk to contain alpha values for palette entries, enabling semi-transparency. Tools like `pngquant` exploit this to create 'Alpha PNG-8' files that have both small size and smooth transparency, though very old browsers (IE6) struggled with this.
PNG-8 has been part of the PNG specification since version 1.0 (1996). It was designed to replace GIF, offering better compression and being patent-free. However, due to Internet Explorer 6's poor support for alpha transparency in PNGs, PNG-8 (with binary transparency) was often used as a fallback for years. Today, with modern tools like TinyPNG and pngquant, PNG-8 has seen a resurgence as an optimization target, allowing developers to serve crisp graphics at tiny file sizes.
WordPerfect Graphics
The clip art format of the WordPerfect era.
WPG (WordPerfect Graphics) is a file format associated with Corel's WordPerfect word processor. It can contain both vector graphics (lines, curves) and raster graphics (bitmaps), making it a 'metafile' similar to WMF.
There are two main versions: WPG1 (WordPerfect 5.0) and WPG2 (WordPerfect 6.0). WPG1 is strictly 16-color or 256-color. WPG2 supports up to 24-bit color and more advanced vector commands. ImageMagick primarily supports reading the raster components.
Dominant in the late 80s/early 90s when WordPerfect was the market leader for word processing, before the rise of Microsoft Word.
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Convert images files between over 20 formats. We support popular formats like PNG, JPG, WebP, HEIC and more.
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