PDF
Merge PDF Files Free — No Upload Required
Merge multiple PDF files into a single document in any order — drag, drop, reorder, and download. All in your browser.
Files never uploadedInstant conversionNo account needed
Your files never leave your browser. All merging happens locally using WebAssembly and JavaScript.
Drop PDFs here or click to browse
Free plan: up to 2 PDFs — upgrade for more
How to Convert PDF to PDF
- 1Drop your PDF file onto the converter above, or click to browse and select a file.
- 2Adjust any conversion options such as output format, quality, or delimiter settings.
- 3Click the Convert button. The file is processed instantly in your browser.
- 4Download your converted PDF file. Your original file is unchanged.
Why Use HarborConvert?
🔒
Complete Privacy
Your files never leave your device. All processing happens in your browser using WebAssembly.
⚡
Instant Results
No upload wait times, no server queues. Conversion starts immediately and completes in seconds.
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Free to Use
Single-file conversion is always free with no account required. Upgrade for batch processing and more.
Frequently Asked Questions
- How many PDFs can I merge at once?
- Free users can merge up to 3 files. Pro users up to 10, Business up to 100.
- Can I reorder the pages before merging?
- Yes. Drag the files in the queue to set the order before merging.
- Are there size limits?
- The total combined size must be within your tier limit (5MB free, 50MB Pro, 200MB Business).
- Will hyperlinks and bookmarks be preserved?
- Basic hyperlinks are preserved. Complex interactive features (forms, JavaScript) may not carry over.
- Is this secure?
- Yes. Files are merged entirely in your browser using pdf-lib. Nothing is uploaded anywhere.