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Merge, split, compress, and transform PDFs in seconds — entirely in your browser. No uploads, no sign-up, no risk. Just fast, private PDF processing.
2M+
PDFs Processed
5,000+
Happy Users
100%
Browser-Based
Zero
Data Collection
Everything you need
Powerful, browser-based tools to handle any PDF task. No installation, no sign-up required.
Combine, split, and rearrange your PDFs
Modify content, add text, signatures, and more
Rotate PDF pages to any angle
FreeAdd page numbers to your PDF document
ProRemove unwanted pages from your PDF
FreeAdd text watermarks to your PDF pages
ProDraw your signature and place it on a PDF
ProAdd text and images to your PDF
ProDetect and fill interactive PDF form fields
ProCrop PDF pages with a visual selection tool
ProTransform between PDF and other formats
Protect and redact sensitive information
Compress and flatten your documents
By the numbers
0+
PDFs Processed
0+
Active Users
0
Professional Tools
0
Files Stored on Servers
Simple & Secure
Three simple steps. Zero data leaves your device.
Drag and drop your PDF files or click to browse. Files stay on your device the entire time.
Our engine processes your PDFs right in your browser using WebAssembly. Nothing is uploaded anywhere.
Your processed PDF is ready instantly. Download it or process another file — it is that simple.
Privacy guarantee: We use WebAssembly to process PDFs entirely in your browser. Your files are never transmitted over the internet — there is no server-side processing whatsoever.
Pricing
Join 5,000+ professionals. Start free, upgrade when you need more.
Basic PDF tools
Unlimited PDF power
Billed $69.99/year
One payment, forever
14-day money-back guarantee, no questions asked
Testimonials
“We use PDFSpark's merge and redact tools daily for client case files. The fact that sensitive legal documents never leave our browser means we stay compliant without extra security overhead. It's saved our team hours every week.”
Sarah Chen
Legal Assistant at Morrison & Partners
“I compress portfolio PDFs before sending them to clients — PDFSpark cuts file sizes by 60-70% without visible quality loss. The split tool is perfect for extracting specific pages from multi-project decks. Way better than paying $20/mo for Adobe.”
James Wilson
Freelance Graphic Designer
“We process dozens of employment contracts and onboarding documents daily. PDFSpark's form filler and signature tools let new hires complete everything digitally. Zero data on third-party servers means our legal team is happy too.”
Maria Garcia
HR Manager at TechCorp AU
“I merged my entire 280-page dissertation from separate chapter files in under 10 seconds — completely free. Other tools either choked on the file size or wanted me to upload it to their servers. PDFSpark just works.”
David Kim
PhD Candidate, University of Melbourne
Trusted by professionals at
Used by teams at law firms, accounting practices, universities, design agencies, and startups across 40+ countries
FAQ
Yes. Our core PDF tools are completely free with a generous limit of 3 operations per day — no credit card, no sign-up required. Thousands of users rely on our free tier every day. If you need unlimited operations, batch processing, and premium features like OCR and watermarking, our Pro and Lifetime plans offer exceptional value.
No — and this is what sets PDFSpark apart. Every PDF operation runs entirely in your browser using WebAssembly technology. Your files never leave your device. There is no upload, no cloud processing, and no data retention. We have processed over 2 million PDFs this way, with zero files ever touching a server.
Since processing happens in your browser, the effective limit depends on your device's available memory. Most modern devices handle files up to 100MB+ without issues, and we've seen users successfully process files over 250MB on desktop browsers. For very large files, we recommend Chrome or Edge on a desktop for optimal performance.
No account is required to use our free tools — just open a tool and start processing. An account is only needed if you want to upgrade to Pro for unlimited operations and advanced features like batch processing and OCR.
PDFSpark has been helping professionals process PDFs since 2024. What started as a simple privacy-focused PDF merger has grown into a comprehensive suite of 18 tools used by over 5,000 users across 40+ countries. We continue to add new tools and improvements based on user feedback.
The Lifetime plan is a one-time payment of $149.99 that gives you permanent access to every Pro feature — including any new tools and improvements we add in the future. No recurring charges, ever. It's our most popular plan for professionals who rely on PDF tools regularly.
Absolutely. PDFSpark is fully responsive and works on any modern browser — Chrome, Firefox, Safari, or Edge — on desktop, tablet, or mobile. Our tools adapt to your screen size, so you get the same powerful experience whether you're at your desk or on the go.
We offer a comprehensive suite of 18 professional tools: merge, split, compress, rotate, add page numbers, password protection, images to PDF, reorder pages, delete pages, watermark, sign PDF, edit PDF, fill forms, PDF to images, crop, redact, flatten, and OCR. We add new tools regularly based on user requests.
There are no artificial file size restrictions. Because PDFSpark processes everything locally in your browser, you are only limited by your device's memory. On a typical modern computer with 8GB+ RAM, you can comfortably process files up to 200MB. For the best experience with very large documents, use a desktop browser.
Your data security is absolute — because your files never leave your device. Unlike traditional PDF tools that upload documents to remote servers, PDFSpark processes everything locally using WebAssembly. We use no tracking cookies, our website is served over HTTPS, and we have been independently recognised for our privacy-first architecture.
No sign-up. No credit card. No file uploads. Just open a tool and get to work.