Guides and tutorials
Step-by-step guides for the tools on this site, with tips, fixes for common problems and the built-in alternatives on each system.
How to compress a PDF without losing qualityWhy PDFs get big, which compression level to pick for email, screen or print, and how to shrink a PDF in your browser without uploading it or blurring the text.Updated · 7 min readHow to compress images without visible quality lossWhich quality to use for JPG and WebP, how PNG shrinks with a color palette, and why resizing saves the most. Compress batches in your browser, with no upload.Updated · 6 min readHow to convert JPG and other images to PDFTurn photos, scans and screenshots into one PDF: pick page size, margins and compression, keep the file small, and do it on any device without uploading.Updated · 5 min readHow to merge PDF files for free, without uploading themCombine PDFs in your browser: reorder them, keep only some pages with ranges like 1-3, 5, and download. Plus the built-in ways on Mac, Windows and Linux.Updated · 6 min readHow to remove the background from a photo with free AICut out people, products or pets as a full-resolution transparent PNG. Which AI model to pick, how to fix edges and add a new background, all in your browser.Updated · 6 min read