PDFThings

Merge PDF

Combine multiple PDF files into one document in seconds — no installs, no account, no watermark.

Drop files here, or browse

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How to merge PDFs

Combine multiple PDF files into a single document in seconds — no installs, no account, and no watermark on your final file. Drag in as many PDFs as you need, arrange them in the order you want, and download one clean, merged document.

Merging is the fastest way to turn scattered files into one professional document, whether you're putting together a job application with a resume and cover letter, combining invoices for a client, or assembling a portfolio. Just upload your files, drag to reorder them, and click merge — the whole process usually takes under a minute.

Every file you upload is encrypted in transit and automatically deleted from our servers within 12 hours, so there's nothing left behind after you download your merged PDF. No account required, and no limit on how many times you can use the tool.

Need to go the other direction? Try our Split PDF tool to pull pages back out of a document, or Compress PDF if your merged file ends up too large to email.

Frequently Asked Questions

Is merging PDFs online safe?
Yes. Files are encrypted in transit and automatically deleted from our servers within 12 hours.
Do I need to create an account?
No. The online merger works without registration. Upload, merge, and download — that's it.
How many files can I merge at once?
You can merge up to 20 PDF files in a single job.