PDF Merger
Combine multiple PDF files into one. No upload, 100% private – all processing happens in your browser.
Click to upload or drag and drop PDF files
Multiple files allowed – they will be merged in the order you select
Files to merge (order from top to bottom)
Your merged PDF is ready!
Why use Pencilfree PDF Merger?
100% Private
Your files never leave your device. No upload, no server, no storage.
Unlimited & Free
No limits, no sign‑up, no payments. Merge as many PDFs as you want.
Blazing Fast
Client‑side processing means instant results – no waiting for uploads.
Try our other free tools
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Frequently Asked Questions
How many PDFs can I merge?
As many as you want – there's no limit. However, very large files may take a moment to process (but still no upload).
Are my files uploaded to your server?
No. All processing happens in your browser. Your files never leave your device.
What happens to my files after merging?
Nothing. They are processed locally and then discarded. We do not store any data.
Can I reorder the files before merging?
Yes. Use the up/down buttons next to each file to change the order. The merged PDF will follow the order shown.