Free PDF and image tools in your browser: merge, split, compress to a target size, OCR in 5 languages, redact, fill & sign, compare. Files are processed on your device, not uploaded (only the optional Office-to-PDF converter uses a server). What's different: a "Prepare documents" workspace. Group your files, set a size/format rule per group and check the real output files before you download. No sign-up. English, Vietnamese, Indonesian, Spanish, French.