SumatraPDF new features: March 29, 2026

New in the SumatraPDF pre-release builds: Crop and resize images When you view an image file, Crop Image (CmdCropImage) and Resize Image (CmdResizeImage) open an editing window. Drag to crop (arrow keys move an edge by 1 pixel) or resize, then save to a new file. The right-click menu has an Image submenu (Copy To Clipboard, Save, Crop, Resize), which also works for images inside PDFs and other documents. Save images as PNG, JPEG, BMP, GIF, TIFF or WebP The image save window has a format drop-down: PNG, JPEG, BMP, GIF, TIFF, and WebP when Windows has a WebP encoder installed (it’s only offered if the encoder is found). Paste image from clipboard Ctrl + V pastes an image from the clipboard: it’s saved as a PNG in the Downloads folder and opened. Drag & drop images from a browser Drag an image from a web browser onto the SumatraPDF window. It’s downloaded to the Downloads folder and opened. Show Errors for problematic PDFs If MuPDF reported warnings or errors while loading a PDF, the…