Merge PDF
Combine files into one ordered document.
Free · No sign-up · Files deleted in 1 hour
How to Merge PDF
- Upload your PDFsAdd two or more files — up to 10 at once.
- Order themDrag to set the page order before merging.
- DownloadMerge into one document and save — files are processed securely and deleted automatically.
Merge PDF Files Online — Free, Fast & Private
Combine multiple PDFs into a single, ordered document right in your browser. Drag to reorder files before merging, then download one clean PDF — no watermarks, no sign-up, and nothing to install.
Dudle merges up to 10 PDFs at a time (50 MB each) on our servers and deletes every upload and result after an hour, so your documents never sit in someone's cloud. It works the same on desktop, tablet and mobile.
Need more than a merge? Split the combined file back apart, compress it for email, or stamp a watermark — every Dudle tool picks up where the last one left off. Pages are copied across rather than re-rendered, so text stays selectable and image quality is unchanged.
- Merge up to 10 PDFs in one job — 50 MB per file
- Drag-and-drop reordering before you merge
- No sign-up, no email, no watermarks
- Originals and the merged file both deleted after an hour
- Works on desktop, tablet and mobile
Frequently asked questions
How do I merge PDF files for free?
Upload two or more PDFs, drag them into the order you want, and click merge — Dudle combines them into one document with no sign-up, no watermark, and no cost.
Does merging PDFs reduce quality?
No. Merging only stitches pages together; it doesn't re-render or re-compress content, so text, images and vector graphics come through at their original quality.
Can I merge a PDF and a Word document together?
Not directly — the merger works on PDFs only. Convert the Word file to PDF first (Dudle's Office → PDF tool does this), then merge it in with the rest.
How do I combine PDFs without Adobe Acrobat?
Dudle merges PDFs entirely in the browser — no Acrobat, no desktop install, and no account. Just upload your files, order them, and download the combined PDF.
Can I merge password-protected PDFs?
Not directly — a password-protected file can't be read by the merger. Open it with its password, save an unlocked copy, then merge normally.