About this tool
Combine several PDF files into one document in your browser. Typical jobs: a proposal plus appendix, scanned IDs, or a client pack that arrived as five attachments.
Email threads and WhatsApp exports scatter PDFs. Merging on 1CLIK is for people who need one file to upload to a portal, send to a printer, or archive — without installing desktop software or creating an account.
Files are processed with pdf-lib inside the page. Order in the list is the order in the output. If a file is encrypted or damaged, the merge will fail for that file; unlock it first, then try again.
After a merge, many teams still need a smaller attachment. Use Compress PDF next, or Split PDF if you only needed two of the ten pages. Nothing here replaces a full desktop editor for bookmarks and forms — it solves the everyday “make one file” problem.
Quick steps
- Choose two or more PDF files (up to the on-page limit).
- Reorder the list if the sequence is wrong.
- Name the output, then merge and download.
- Open the download locally before you send it to a client.
PDFs stay on your device. They are not uploaded to 1CLIK to merge them.
FAQ
Is there a file-size limit?
Very large scans can exhaust browser memory. Compress or split first if the tab freezes.
Do bookmarks survive?
Basic page content is merged. Advanced outline/bookmark behavior depends on the source files.
Can I merge images too?
Convert images with Images to PDF first, then merge the resulting PDFs.