Combine multiple PDF files into one document. Drag to reorder pages. No upload, no account.
Click to add files or drag & drop PDFs here
Add as many PDFs as needed · Drag items to reorderClick or drag & drop your file. Nothing is uploaded — it stays on your device.
Your browser processes the file locally using JavaScript — fast and completely private.
Your processed file downloads immediately. No waiting, no email, no account needed.
Merging PDFs is essential when combining reports, contracts, invoices, or presentations into a single deliverable. Instead of sending multiple attachments, a merged PDF is cleaner and more professional. OneConvert uses pdf-lib to combine files entirely in your browser — no upload, no storage, no privacy risk.
Add as many PDF files as needed, drag them to set the order, and click Merge. The combined PDF downloads immediately. There is no limit on the number of files or total file size beyond your available browser memory.