Free Online PDF Tools — Compress, Convert & AI Chat
Free online PDF tools to compress files, convert formats, summarize documents, and chat with any PDF — all private, no signup, processed in your browser.
Most popular
Popular free PDF tools
These are the tools people reach for most. Compress a PDF before emailing it, convert a PDF to Word for editing, or chat with a PDF to pull out exactly what you need.
Compress PDF
Compress PDF files by up to 90% while maintaining quality. Free, fast, and private — processed entirely in your browser.
Merge PDF
Merge PDF files into a single document. Combine multiple PDFs with drag-and-drop reordering — free, private, and browser-based.
PDF to JPG
Convert PDF to JPG images for free. Transform each PDF page into a high-quality JPEG file — fast, browser-based, and private.
Chat with PDF
Chat with PDF documents using AI. Have a conversation, ask follow-up questions, and get cited answers from any document.
AI PDF Summarizer
PDF summarizer powered by AI. Get instant summaries of any document — key points, main arguments, and critical data extracted in seconds.
Translate PDF
Translate PDF documents to 50+ languages with AI while preserving layout and formatting.
AI Question Generator
PDF question generator that creates quizzes, flashcards, and study materials from any document. Powered by AI — perfect for students and teachers.
Edit, sign & secure
PDF editing and security tools
Add page numbers, watermarks, and signatures. Password-protect sensitive documents, crop pages, and flatten forms — all free and private.
Edit PDF
Edit PDF files for free in your browser. Add text, images, shapes, and annotations to any PDF document — no software required.
Sign PDF
Sign PDF documents for free. Draw, type, or upload your signature and place it anywhere on any PDF — browser-based and secure.
Protect PDF
Password-protect and encrypt PDF files for free. Add security to any PDF document — processed entirely in your browser for total privacy.
Add Page Numbers to PDF
Add page numbers to any PDF for free. Customize position, font, and format — browser-based, private, and instant.
Watermark PDF
Add watermarks to PDF documents for free. Stamp text or image watermarks on every page — browser-based, customizable, and private.
Crop PDF
Crop PDF pages for free. Trim margins, resize page areas, and remove unwanted whitespace — browser-based and private.
Flatten PDF
Flatten PDF forms and annotations for free. Merge interactive fields into static page content — browser-based, instant, and private.
Unlock PDF
Remove PDF password protection for free. Unlock encrypted PDF files so you can edit, print, and share them freely — browser-based and private.
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PDF tools for every workflow
Whether you need to reduce a PDF's file size, convert between formats, merge, split, or rearrange pages, edit and annotate, protect or unlock, or use AI to understand a document, we have a tool that fits.
Compress
Reduce PDF file size without losing quality.
Convert
Convert PDFs to and from other formats.
Organize
Merge, split, rotate, and rearrange PDF pages.
AI PDF
AI-powered PDF tools for summaries, translation, and Q&A.
Edit
Edit, annotate, crop, and enhance PDF documents.
Security
Protect, unlock, flatten, and redact PDF files.
Compress PDF tools are ideal when you need to email a large report or upload documents to portals with strict file-size limits. Our PDF compressor runs entirely in your browser, so sensitive financial statements or legal contracts never leave your device.
Convert PDF tools let you move between PDF and editable formats without losing formatting. The PDF Converter handles Word, Excel, PowerPoint, and image formats — all processed locally for maximum speed and privacy.
Organize PDF tools let you merge multiple PDFs into one, split documents by page range, fix page orientation, and rearrange pages with drag-and-drop — all processed locally in your browser.
AI PDF tools bring intelligence to your documents. Chat with PDF lets you ask questions in natural language and get cited answers. Summarize a PDF into key bullet points. Translate a PDF into 50+ languages while preserving layout. Or generate quiz questions for studying — perfect for students and educators.
Edit PDF tools let you make changes without expensive software. Edit a PDF by adding text and images, add page numbers to documents, add watermarks, crop pages, or sign documents electronically.
Security PDF tools keep your documents safe. Password-protect a PDF to prevent unauthorized access, unlock a PDF to remove restrictions, flatten forms for consistent output, or redact sensitive content before sharing.
How it works
Three steps to better PDFs
No accounts, no installs, no waiting. Upload, process, download.
Upload your PDF
Drag and drop your file or click to browse. Your document stays in your browser for compression and conversion tools — nothing leaves your device.
Process instantly
Our tools get to work immediately. Client-side tools run on your device using WebAssembly. AI-powered tools use a secure, encrypted connection with instant deletion after processing.
Download your result
Get your compressed, converted, summarized, or translated PDF in seconds. No watermarks, no signup walls — just your finished file, ready to use.
Why PDF Shuttle
A better way to work with PDFs online
Most online PDF tools lock useful features behind paywalls, plaster watermarks on your output, or force you to create an account before you can do anything. PDF Shuttle takes a different approach: every tool is free, every output is clean, and you never need to sign up.
We built PDF Shuttle with a privacy-first architecture. When you compress a PDF or convert a PDF to Word, the processing happens entirely in your browser using WebAssembly. Your files never touch a server. For AI-powered tools that need server-side processing, we encrypt files in transit and delete them the moment your session ends.
Whether you're a student summarizing a textbook chapter, a professional translating a contract, or a teacher generating quiz questions from lecture notes — PDF Shuttle handles it. The AI PDF Assistant can even answer complex questions about multi-page documents with page-level citations.
All tools work on desktop, tablet, and phone. There's nothing to install — just open your browser and go. Bookmark the tools page so it's always one click away.
Trust & privacy
Your documents deserve privacy
We built PDF Shuttle with a privacy-first architecture. Most tools process your files locally in the browser — and when server processing is needed, we handle your data with care.
No sign-up required
Use every tool instantly without creating an account or handing over your email address.
Client-side processing
Compression and conversion tools run entirely in your browser. Your files never touch our servers.
No watermarks, ever
Your output is clean. We never add watermarks, branding, or other marks to your documents.
Secure deletion
When AI tools need server processing, your files are encrypted in transit and deleted immediately after your session ends.
Frequently asked questions
Everything you need to know about PDF Shuttle's free PDF tools.
Yes. Every tool on PDF Shuttle is 100% free with no sign-up, no trial period, and no hidden fees. We don't add watermarks or limit the number of files you can process.
Our compression and conversion tools process your files entirely in your browser — nothing is uploaded to a server. AI-powered tools like Chat with PDF and PDF Summarizer use a secure, encrypted connection, and your documents are permanently deleted the moment your session ends.
No. Every tool works without registration. Just open the tool page, drop your file, and get results instantly. No email, no password, no profile.
The PDF Converter supports PDF to Word (DOCX), PDF to Excel (XLSX), PDF to PowerPoint (PPTX), PDF to PNG, PDF to JPG, and the reverse. All conversions run in your browser.
Our compressor uses client-side WebAssembly algorithms to re-encode images and strip unnecessary metadata from your PDF. Depending on the content, you can expect 40–90% size reduction with minimal visible quality loss.
Our AI suite includes Chat with PDF for conversational Q&A, an AI PDF Summarizer for instant summaries, Translate PDF for 50+ language translations, an AI Question Generator for quizzes and study materials, and a general AI PDF Assistant for document analysis.
Yes. PDF Shuttle is fully responsive and works on any modern browser — desktop, tablet, or phone. Client-side tools run well on recent smartphones.
There is no hard limit for most tools. Browser-based tools depend on your device's available memory, so very large files (500 MB+) may take longer. AI tools work best with documents under 200 pages.
Most PDF tools require accounts, add watermarks, or limit free usage. PDF Shuttle is free forever with no restrictions. We prioritize privacy by processing files in your browser whenever possible, and we never store your documents.
Absolutely. There are no restrictions on personal or commercial use. Many professionals use PDF Shuttle to compress reports before emailing, convert contracts to editable formats, and summarize research papers.
Yes. PDF Shuttle offers free browser-based editing tools including Edit PDF for adding text and images, Add Page Numbers, Watermark PDF, Crop PDF, and PDF Annotator — no expensive software required.
Yes. Our Protect PDF tool adds password protection to any PDF document, completely free. We also offer Unlock PDF to remove passwords, Flatten PDF to lock down form fields, and Redact PDF to permanently remove sensitive content.
Yes. The Sign PDF tool lets you draw or upload your signature and place it on any page of a PDF document. It is free, requires no account, and works entirely in your browser.
Yes. Our PDF OCR tool converts scanned PDF documents into searchable, selectable text. This makes scanned documents compatible with our AI tools for summarizing, translating, and chatting with the content.
Bookmark PDF Shuttle for next time
No account needed, no install required. Just come back whenever you need to compress, convert, or chat with a PDF. Share with a friend who could use it too.