PDF & DocumentsRuns in your browser
Merge PDF
Combine PDFs in any order, entirely on your device.
Use the Merge PDF tool
What this merge pdf does
Merge PDF joins two or more PDF files into a single document. Add your files, drag them into the order you want, and download the combined result. Page sizes and orientations are preserved exactly; the tool does not re-render or compress pages unless you ask it to.
Most free PDF sites upload your documents to their servers. This one uses pdf-lib inside your browser, so invoices, contracts and identity documents stay on your device. Encrypted PDFs must be unlocked first — the tool will tell you which file is protected.
Why use it
- Combine scanned invoices or receipts into one file for accounting.
- Attach a cover letter to a report before emailing it.
- Assemble a portfolio from separate exported pages.
How to use it
- 1Drop PDF files into the upload area or click to browse.
- 2Reorder files with the arrow controls until the sequence is correct.
- 3Press Merge and wait for the download to be prepared.
- 4Download the combined PDF and check the page count.
Worked examples
Three invoices
Input
invoice-jan.pdf (2 pages), invoice-feb.pdf (2 pages), invoice-mar.pdf (1 page)
Output
invoices-q1.pdf · 5 pages · original page sizes preserved
Common mistakes
- Merging password-protected PDFs without unlocking them first.
- Uploading sensitive documents to a server-based tool you do not trust.
- Assuming merged files are compressed — merging alone usually keeps the original size.
Frequently asked questions
Are my PDFs uploaded anywhere?
No. The files are read with the File API and assembled with pdf-lib in your browser. Nothing is sent to KitJade.
Is there a file limit?
Limits depend on your device's memory rather than an arbitrary count. Very large PDFs — hundreds of megabytes — may be slow on low-memory phones.
Can I merge password-protected PDFs?
Not directly. Remove the password in a PDF reader first, then merge the unlocked copies.