PDF Tools
Best Free PDF Tools in 2026: A Privacy-First Roundup
30+ free, browser-based PDF tools, organized by task. Every tool runs in your browser with no upload, no account, and no tracking. Tested July 2026.
We built PDF Tools in 2024 because we got tired of uploading confidential contracts to free PDF websites and watching them get scraped. Two years later, this roundup covers 30+ browser-based tools that handle the most common PDF tasks without ever uploading a file. All of them are free, most have no account requirement, and several work fully offline once the page loads.
How we picked these tools
Every tool on this list runs entirely in your browser using open-source JavaScript libraries. We exclude any service that requires a server-side upload, mandatory account, or telemetry beyond cookieless page-view counts. Tools that require sign-up but otherwise fit the criteria are marked with a note. Where multiple tools solve the same problem, we picked the one with the best mix of features, output quality, and zero-server behavior.
Privacy guarantee: each tool below is browser-based. Your files never reach a server, even when the tool claims to use 'cloud' features — the cloud is your own device. We tested this claim by enabling network monitoring while processing 50+ MB PDFs and confirming zero outbound file uploads.
30 free tools, organized by task
Merge, split, and reorganize PDFs
- PDF Merge
Combine multiple PDFs into one document. Drag-and-drop reordering, no upload, no watermark. Uses pdf-lib locally.
- PDF Split
Split a PDF by page, range, or bookmark. Output as separate PDFs in a single ZIP download.
- PDF Organize
Reorder, delete, and duplicate pages. Best for cleaning up a messy PDF before sending.
Compress and optimize
Convert between PDF and other formats
- PDF to Word
Extract text and structure from a PDF into an editable .docx. Preserves headings and lists; complex layouts may need cleanup.
- Word to PDF
Convert .docx to PDF with two modes: Searchable Text (extracts text layer) and Visual Fidelity (preserves fonts and layout).
- Image to PDF
Bundle one or more JPG/PNG/WebP images into a PDF. One image per page, fully reorderable.
- PDF to Image
Export each PDF page as a JPG, PNG, or WebP. Bulk ZIP download.
- PDF to Excel
Extract tables from a PDF into a multi-sheet .xlsx. Tables with consistent structure convert cleanly.
- Excel to PDF
Convert .xlsx to PDF with multi-sheet support and formatting preserved.
- Word to JPG
Render each page of a .docx as an image. Useful for sharing previews on social media.
- EPUB to PDF
Convert EPUB ebooks to PDF for printing or reading on devices that don't support EPUB.
- PDF to PPT
Convert PDF slides to editable PowerPoint. Best on text-based slides with simple layouts.
Sign, encrypt, and protect
- PDF Sign
Add electronic signatures (typed, drawn, or uploaded). Save signatures for reuse. Legally binding in most jurisdictions.
- PDF Encrypt
Add a password to a PDF. Supports 40-bit RC4, 128-bit RC4, 128-bit AES, and 256-bit AES.
- PDF Unlock
Remove the open password from a PDF that you already know the password to. We do not crack or brute-force lost passwords.
- PDF Watermark
Add text or logo watermarks. Position, rotation, opacity, and pages are all configurable.
Edit and annotate
- PDF Editor
Add text, drawings, highlights, and shapes to any PDF. Page management included.
- PDF Page Numbers
Add page numbers in any position with custom format. Useful for legal and academic documents.
- PDF Watermark
Also useful as a quick annotation tool: stamp DRAFT, CONFIDENTIAL, or your initials on every page.
- PDF Rotate
Rotate individual pages or the whole document. Permanent rotation, not viewer-level hint.
- PDF Resize
Change page dimensions to A4, Letter, or custom sizes. Useful for print formatting.
- PDF Crop
Crop pages by setting custom margins. Trim whitespace or focus on a specific area.
Extract text and OCR
- Image to Text
Extract text from any image using Tesseract.js. Supports 6 languages including English, Spanish, Chinese.
- OCR PDF
Convert scanned, image-only PDFs into searchable PDFs with a hidden text layer. Same Tesseract.js engine.
- PDF to Excel
Also works on scanned PDFs via the OCR pipeline. Tables convert cleanly when structure is consistent.
How we test the privacy claim
We test every browser-based tool on this list with network monitoring enabled (Chrome DevTools Network tab or Firefox network monitor). We load a representative 10 MB PDF, run the tool, and confirm that zero bytes of file content leave the device. Static assets (JavaScript, CSS, fonts) are expected to load from the CDN; the file content itself should never travel anywhere.
If a tool fails this test, we remove it from the list regardless of how good its features are. Privacy is non-negotiable for our audience.
When to skip browser-based tools
Browser-based PDF tools are not a fit for every workflow. Use a desktop tool like Adobe Acrobat if you need any of the following: complex desktop publishing with multiple master pages, advanced form field scripting, redlining and tracked changes across teams, or PDF/A archival compliance. For these cases, Adobe Acrobat Standard or Pro is the right tool — and your files still don't need to leave your device unless you explicitly sync them.
If you're processing 100+ page PDFs with heavy images and complex layouts, browser tools may take 30-60 seconds per operation. Adobe Acrobat desktop is faster for these specific cases. For everything else, browser tools are usually faster because there's no upload round-trip.
Recommended reading & tools
FAQ
Frequently Asked Questions
Are these tools really free? ▾
Yes. No hidden fees, no premium tiers hiding features, no watermarks on output. All 30+ tools are free to use indefinitely. We sustain the project through affiliate partnerships with carefully selected SaaS companies, which are clearly disclosed on every page that contains affiliate links.
Will my files be uploaded anywhere? ▾
No. Every tool on this list runs entirely in your browser using open-source JavaScript libraries. We tested this claim by enabling network monitoring while processing 50+ MB PDFs. Static assets load from the CDN, but the file content itself never travels.
Do I need to create an account? ▾
No. All 30+ tools work without an account. Save signatures, saved watermark presets, and other personalization stay in your browser's localStorage — they never sync to a server. Clearing your browser data clears them too.
Can I use these tools offline? ▾
Yes, after the first page load. Open the tool while online, then disconnect from the internet. The tool continues to work because all the processing code is already in your browser. Note: OCR and PDF to Word/Excel rely on WebAssembly files that may need to be re-cached occasionally.
What about large files? ▾
All processing happens in your browser's memory, so file size limits are set by your device's RAM, not by us. In practice, files up to ~500 MB work well. Beyond that, performance depends on your browser and machine.
How do you sustain this project financially? ▾
Affiliate partnerships. When you click an affiliate link on this site and make a purchase or sign up for a service, we may earn a commission. Affiliate relationships never influence which tools we recommend, and we disclose all affiliate links on every page.
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About the author
Bai Shuang
Founder, PDF Tools
Bai Shuang is a software engineer with 16 years of development experience and extensive expertise in full-stack design and development.