Merge PDF Files
Pick several PDFs, put them in order and combine them into a single PDF. Your files are never sent to a server: they are merged right here in your browser, so tax forms, bank statements and ID scans stay on your device.
Choose two or more PDFs, then tap Merge PDFs.
How to merge PDF files
- Tap Choose PDF files and select the documents you want to combine. You can pick several at once; choosing again adds more to the end of the list.
- Use the ↑ and ↓ buttons to set the order. The file at the top becomes the first pages. Remove a file you added by mistake with ✕.
- Tap Merge PDFs. The result is ready in a few seconds – save it with Download merged.pdf.
Every page is copied as-is, keeping its size, orientation, fonts and links, and the text stays searchable. Need only some pages of a file? Pull them out first with Split PDF, then merge the result.
When a single PDF is required
- Job applications: many applicant tracking systems accept only one attachment. Put your cover letter, résumé, references and certificates in the order the posting asks for and merge them.
- Visa, immigration and government forms: online portals often want each piece of evidence – passport bio page, bank statements, employment letter – as one PDF per category. Merge the scans for each category into one file before you upload.
- University and scholarship applications: combine transcripts, a personal statement and recommendation letters into the single PDF an admissions portal expects.
- Invoices, receipts and expense reports: attach one tidy PDF of all receipts to an expense claim, or send a client one file with the invoice and supporting timesheets. Photos of paper receipts? Turn them into a PDF first with Image to PDF.
If you would rather not hand tax returns or ID documents to an unknown website, this tool is a good fit: the merging happens entirely on your device and the file contents never leave it.
Good to know
- File size: all files are held in your device's memory while merging, so on a phone keep the total under about 100 MB. For bigger jobs, use a computer.
- Password-protected (encrypted) PDFs can't be merged. Open the file in your PDF viewer with the password, remove the protection (or use Print → Save as PDF) and add the new copy.
- Fillable forms and digital signatures: the page content is copied, but form fields may stop working in the merged file, and digital signatures become invalid because the document has changed. If a signed original must be verifiable, submit it separately.
- Bookmarks (the outline in the sidebar of your PDF viewer) are not carried over.
Frequently asked questions
Are my files uploaded?
No. Your files are never sent to a server; they are processed only inside your browser and are gone from memory when you close the page. The browser downloads the PDF library (pdf-lib) once, and after that merging even works offline.
How many files can I merge?
There is no fixed limit. Your device's memory is the only constraint: a computer handles hundreds of pages easily, while on a phone a few dozen files and under 100 MB in total is a safe range.
Can you make the merged file smaller?
No – this site doesn't offer PDF compression. Shrinking a PDF properly means re-compressing every image inside it, and in a browser the quality loss is hard to control and text can end up turned into pictures. The merged file is about the size of the originals combined. If an upload limit is the problem, split the file into parts with Split PDF instead.