Merge PDF
Combine two or more PDFs into a single, clean document. Reorder before merging — no watermarks, no signup.
- Encrypted in transit (TLS 1.3)
- Files auto-deleted in 60 minutes
- No signup required
Run Merge PDF
About Merge PDF
Whether you're stitching together a contract pack, a course handout or a year-end report, our Merge PDF tool joins your files into one polished document in seconds.
Drop up to 50 PDFs in any order. We preserve bookmarks, links and form fields, keep the original quality untouched, and deliver the merged file straight to your browser — no email handoff, no cloud round-trip.
How Merge PDF works
Three steps. Done in seconds.
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1
Drop your PDFs
Drag-and-drop, click to browse, or paste. Add up to 50 files.
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2
Arrange the order
Files merge in the order you upload them. Re-upload to change.
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3
Download the combined PDF
We process in-memory and stream the merged file back. Original files are auto-deleted within 60 minutes.
Why Merge PDF on Pixenith
Built for serious work. Free for everyday use.
Privacy first
Encrypted in transit, processed in isolated workers, deleted within 60 minutes.
Lightning fast
Most jobs finish in under 5 seconds. Heavy ones run on dedicated worker pools.
Production engine
Powered by pikepdf, Ghostscript, Tesseract OCR, ONNX models — the same tech the pros use.
Free, no signup
Generous daily limits on the free plan. Upgrade only if you need bigger files.
Related PDF tools
Often used alongside Merge PDF.
- Split PDF Split a PDF into single pages, by page ranges, or by target file size.
- Organize PDF Reorder and delete pages by specifying a new page order.
- Extract pages Pull selected pages into a new PDF file.
- Compress PDF Reduce PDF file size. Pick a preset (low / medium / high) or specify a target size (e.g. 200 KB or 2 MB) and we'll binary-search the quality ladder for the best-quality output that fits.
- Rotate PDF Rotate every page or a specific range by 90/180/270 degrees.
- Add watermark Stamp a text watermark across every page.
Merge PDF — frequently asked questions
Everything you need to know.
How many PDFs can I merge at once?
Up to 50 PDFs on the free plan, more on paid plans. There's a per-file size cap (25 MB free, 200 MB Pro, 500 MB Business).
Will I lose quality after merging?
No. Pixenith uses pypdf's stream-copy path — pages are placed verbatim into the output, with no re-compression or rasterising. Bookmarks, links, form fields and metadata are preserved.
Are my files private?
Yes. Uploads are encrypted in transit, processed in isolated workers and auto-deleted within 60 minutes. We never read, share or train on your documents.
Can I merge password-protected PDFs?
Unlock them first with our Unlock PDF tool, then merge. We don't ask for passwords during merge to keep the path private.
Does Merge PDF cost anything?
No. Merging is free and unlimited on the free plan within fair-use daily limits.