Merge PDF
Select or drag and drop PDF files to merge.
(PDF merging will be performed entirely in your browser.)
How to Merge PDF Files Online — Free & Private
Need to combine multiple PDF documents into one file? PeacefulPDF's merge tool lets you do it instantly, right in your browser. No file uploads, no account creation, no waiting for server processing.
Most PDF merge tools — iLovePDF, Smallpdf, Adobe — require you to upload your documents to their servers. That's fine for public brochures, but terrible for contracts, tax forms, or anything with personal information. PeacefulPDF processes everything locally using your browser's JavaScript engine. Your PDFs never leave your device.
Drag and drop your files, reorder them however you want, and click merge. The combined PDF downloads directly to your computer. The whole process takes seconds, even for large files, because there's no upload/download step.
Works on Chrome, Firefox, Edge, and Safari. Works on mobile. Works offline after the page loads. No file size limits. Completely free.
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FAQ
Can I merge more than two PDFs at once?
Yes. Upload as many PDFs as you need — there's no limit on the number of files you can combine.
Will merging reduce the quality of my PDFs?
No. The merge process copies pages as-is. No re-compression, no quality loss. The output is identical to the originals.
Is there a file size limit?
No hard limit. Since processing happens in your browser, the limit depends on your device's available memory. Most users can merge files up to several hundred MB without issues.