DNG 格式原本应该取代所有其他 RAW 格式。虽然它并没有完全取代，但 iPhone ProRAW、徕卡和宾得相机都在使用它。如果您需要分享照片但又不想承担 RAW 格式的额外开销，可以将 DNG 转换为 JPG 格式。
或者将图片拖放到这里。
支持JPG, JPEG, PNG, WEBP, SVG, GIF, HEIC, HEIF, BMP, TIFF, HDR, JP2, RAF, PSD, CR3, DNG, APNG, AVIF, AVI, ESP, EXR, J2C, J2K, JXL, PFM, PNM, PPM, PSB, SGI, MPEG, PDF
从 iPhone Pro (ProRAW)、徕卡 M/Q/SL、宾得 K 系列以及任何导出 Adobe Digital Negative 文件的相机或软件中提取 DNG 文件。
DNG 文件嵌入了拍摄时渲染的全分辨率 JPEG 预览图。转换器会提取此预览图——快速、忠实还原，无需进行去马赛克处理。
输出质量与嵌入式预览质量一致：相机白平衡、嵌入式色彩配置文件和相机内渲染均已集成。EXIF 元数据（包括 GPS 和镜头数据）得以保留。
Convert DNG to JPG for better compatibility and optimization
Improved file compatibility and optimized performance
Professional-grade conversion with quality preservation
excellent for photos with advanced JPG encoding
Perfect for photography, web images, social media
Handles Digital Negative, open standard RAW format from DNG files
现在分享 JPG 文件的同时，保留稍后编辑 RAW 文件的选项。
Digital Negative
Requires an explicit image format otherwise the image is interpreted as a TIFF image (e.g. dng:image.dng).
Joint Photographic Experts Group JFIF format
Note, JPG is a lossy compression. In addition, you cannot create black and white images with JPG nor can you save transparency. Requires jpegsrc.v8c.tar.gz. You can set quality scaling for luminance and chrominance separately (e.g. -quality 90,70). You can optionally define the DCT method, for example to specify the float method, use -define jpeg:dct-method=float. By default we compute optimal Huffman coding tables. Specify -define jpeg:optimize-coding=false to use the default Huffman tables. Two other options include -define jpeg:block-smoothing and -define jpeg:fancy-upsampling. Set the sampling factor with -define jpeg:sampling-factor. You can size the image with jpeg:size, for example -define jpeg:size=128x128. To restrict the maximum file size, use jpeg:extent, for example -define jpeg:extent=400KB. To define one or more custom quantization tables, use -define jpeg:q-table=filename. These values are multiplied by -quality argument divided by 100.0. To avoid reading a particular associated image profile, use -define profile:skip=name (e.g. profile:skip=ICC).
DNG 源文件特性、预览行为、ProRAW 处理。
