PDF (Portable Document Format) is one of the most widely used file formats in the world, and for good reason. Created by Adobe in the early 1990s, PDF files preserve document formatting across all devices and operating systems, making them the standard for sharing professional documents, academic papers, legal contracts, and more.
At ToolStackTools, we provide a comprehensive suite of free online PDF tools that help you work with PDF files efficiently and securely. All of our PDF tools process files directly in your browser using client-side JavaScript, which means your documents never leave your device — ensuring complete privacy and security.
Our PDF Tools collection includes converters for transforming PDFs to Word documents and vice versa, tools for merging multiple PDFs into a single file, splitting large documents into smaller sections, compressing oversized PDFs for easier sharing, converting between PDF and image formats, rotating misoriented pages, and adding or removing password protection.
Whether you're a student managing academic papers, a business professional handling contracts and reports, or anyone who regularly works with digital documents, our free PDF tools save you time and eliminate the need for expensive desktop software. Each tool is designed to be intuitive and fast, with drag-and-drop file upload, real-time progress indicators, and automatic file downloads.
All tools are completely free with no registration required, no file size limits, and no watermarks on your documents. Start using any of our PDF tools below — just click on the tool you need and get started in seconds.
Extract readable PDF text into a real editable .docx document. Original layout, tables and images are not preserved; scanned pages need OCR, which is not included.
Convert text from .docx or .txt into a PDF with wrapped lines and page breaks. Original formatting, images and tables are not preserved. Legacy .doc files are not supported.
Stitch several PDFs into one file — cover letter + CV, or scanned pages that arrived one at a time.
Pull out the pages you actually need from a long PDF — one chapter, a single invoice, or every page as its own file.
Optimize PDF structure without rasterizing, or choose stronger JPEG page compression for scans. JPEG mode removes searchable text, links, forms and signatures. If the result is larger, the original file is returned.
Turn each PDF page into an image you can drop into a slide, a social post, or a website — without screenshotting page by page.
Turn a stack of phone photos or scans into one PDF — the format receipts, forms and portals actually accept.
Fix a PDF that opens sideways or upside-down — usually a scanner that grabbed the page the wrong way round.
Remove PDF encryption locally using the correct password with modification permissions. This tool does not recover forgotten passwords.
Encrypt your PDF locally with AES-256 and a password required to open it. Keep your password safe. Unlock already encrypted documents before adding a new password.
Add text watermarks to PDF files
Extract specific pages from a PDF
Add page numbers to PDF documents
Edit PDF title, author, and subject
Yes, all PDF tools on ToolStackTools are 100% free. There are no usage limits, no watermarks, and no registration required.
Absolutely. All PDF processing happens in your browser. Your files are never uploaded to any server.
Yes, our Merge PDF tool supports combining multiple PDF files into one document.
Since processing happens in your browser, the limit depends on your device's memory. Most files up to 100MB work without issues.