Free Online PDF Tools - All-in-One PDF Toolkit
Compress, merge, split, convert, rotate, watermark, and extract PDF pages. All tools work directly in your browser with complete privacy.
pdfcompressor.cc is a free toolkit of browser-based PDF tools: compress, merge, split, convert, rotate, watermark, and extract pages from your documents.
Every tool runs entirely on your device. Your files are never uploaded to a server, which keeps private documents private and lets large files process without a slow upload step.
Pick a tool below to get started. Each one works the same way: add your file, choose your options, and download the result in seconds.
Compression alone offers two modes: pick a quality tier for a predictable, balanced reduction, or switch to target-size mode and enter an exact KB or MB limit — both are explained in detail further down this page.
Compress PDF
Reduce PDF file size while keeping quality. Choose a quality tier — low, medium, or high — or enter an exact target size in KB or MB.
Merge PDF
Combine multiple PDF files into one document. Drag and drop to reorder pages before merging.
Split PDF
Split a PDF into multiple files by page ranges. Each range becomes its own downloadable document.
PDF to Image
Convert PDF pages to PNG or JPEG images with adjustable quality and resolution.
Rotate PDF
Rotate PDF pages by 90, 180, or 270 degrees. Rotate individual pages or all pages at once.
Watermark PDF
Add custom text watermarks to your PDF with adjustable font, color, opacity, and position.
Extract Pages
Select and extract specific pages from a PDF into a new, smaller document.
Compress PDF to Size
Shrink a PDF to an exact target — 100KB, 200KB, 500KB, or 1MB — for email limits, forms, and portals.
PDF to JPG
Convert PDF pages into smaller JPG images that are easy to share by email and social media.
Which Tool Do You Need?
Not sure where to start? Match what you're trying to do to the right tool below.
Shrink a file for email or an upload limit
Compress PDF
Pick a quality tier for a balanced reduction, or switch to target-size mode to hit an exact KB or MB limit.
Combine several PDFs into one document
Merge PDF
Add multiple files, reorder them with the up/down controls, and export a single combined PDF.
Send only part of a large PDF
Split PDF or Extract Pages
Split breaks a document into separate files by the page ranges you define. Extract Pages instead pulls out just the pages you choose into a single new, smaller file and discards the rest. Use Split when you need several range-based pieces; use Extract when you only need a subset.
Fix pages that were scanned sideways or upside down
Rotate PDF
Rotate individual pages or the whole document by 90, 180, or 270 degrees.
Mark a document as a draft or add branding
Watermark PDF
Add custom text with adjustable font, color, opacity, and position.
Turn PDF pages into images
PDF to Image
Export pages as PNG or JPEG files at your chosen format and resolution.
How Compression Actually Works
Every claim below matches what the engine does in code, not vague marketing promises.
Three Real Compression Tiers
Pick a quality level and the engine re-encodes every embedded JPEG image inside your PDF, then rebuilds the document structure and clears unnecessary metadata. Each tier uses a fixed, predictable recipe rather than a guess.
Low
Re-encodes embedded images at 85% JPEG quality without resizing them. Best when you want a smaller file with almost no visible quality loss.
Medium
Re-encodes images at 70% JPEG quality and downsamples anything wider than 1600 pixels on its longest side. A balanced default for sharing and archiving.
High
Re-encodes images at 50% JPEG quality and downsamples anything over 1200 pixels. Produces the smallest files, ideal for scanned documents and image-heavy PDFs.
Compress to a Target File Size
Instead of choosing a quality tier, tell the tool exactly how small the result should be: 100KB, 200KB, 500KB, 1MB, or any custom size from 10KB upward. The engine renders each page as an image and searches through quality and scale combinations until the output lands at or near your target. This mode converts every page into a picture of itself, so it suits documents where selectable text isn't required. If a target is too aggressive to reach, the tool returns its closest attempt and tells you honestly that the target wasn't fully met, instead of pretending it succeeded.
Runs Entirely in Your Browser
Both compression modes execute inside a Web Worker, using pdf-lib to rebuild the document structure and pdf.js to render pages for target-size mode, all as JavaScript running on your device. Your PDF is never uploaded to a server, so large files skip a slow upload step and sensitive documents never leave your machine.
100% Secure Processing
All PDF compression happens locally in your browser. Your files never leave your device, ensuring complete privacy and security.
Lightning Fast Compression
Advanced compression algorithms powered by Web Workers provide instant results without compromising quality.
Completely Free
No registration, no payment, and no limit on how many files you compress. Single files up to 500MB are supported.
Premium Quality Output
Shrink image-heavy PDFs by up to 80% using smart JPEG recompression, while preserving quality on text-based content.