Build an application or rental file
Combine a scanned ID, proof of income and certificates into one PDF, as many online forms require.
Merge PDF files
Select several PDF documents in the order you want, then merge them into one file that you can download directly from your browser.
- Export
Your files are processed locally in your browser and are never sent to our servers.
Drop your file here
Recommended size: up to 100 MB
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How does this tool work?
Merging PDFs means placing the pages of several documents one after another in a single file. Use it to combine a contract with its appendices, a month of invoices or report chapters that were exported separately. The files are read and assembled in your browser and never pass through a server, which also suits personal paperwork such as a rental application or supporting documents.
The tool opens each selected PDF, copies all of its pages into a blank document and moves on to the next file. Pages keep their original content: selectable text, images, fonts and page size are neither recompressed nor turned into images. An A4 document followed by a Letter document therefore gives a PDF whose pages are not all the same size.
Files are merged in the order they were selected, shown below the import area. There is no list to reorder yet: to control the sequence, give the files a numeric prefix or select them in the order you want. You need at least two PDFs, each up to 100 MB.
Only the pages are copied. Bookmarks from the original documents are not carried over, and the title or author stored in each file’s properties is not passed on to the merged PDF.
How to use this tool
Select the PDFs
Choose at least two files in the import window or drop them on the drop zone. Their names appear in the order in which they will be combined.
Check the order
If the sequence shown is wrong, reset and select the files again in the right order, or rename them with a 01-, 02-… prefix.
Merge
The browser assembles the pages and downloads a merged.pdf file. Open it and check the first page of each document.
Use cases
Reassemble a report exported in parts
Join the cover page, main body and appendices produced by different applications.
Group invoices or statements
Gather the documents for a period into a single file before sending them to an accountant or archiving them.
Examples
A contract and its appendix
Each document keeps its internal page order; only the order of the files sets the sequence. To put the appendix first, simply select it first.
Input
contract.pdf (3 pages), then appendix.pdf (2 pages), selected in that orderResult
merged.pdf with 5 pages: pages 1–3 of the contract, then pages 1 and 2 of the appendixTips and best practices
- Prefix file names (01-cover.pdf, 02-report.pdf…): most file dialogs then list them in the right order.
- If a page ends up upside down or in the wrong place, fix the merged file with Rotate PDF pages or Reorder PDF pages instead of starting again.
- A password-protected PDF must be unlocked first, otherwise it cannot be read.
- If the recipient sets a maximum file size, cut the result with Split a PDF by size or page count.
Frequently asked questions
Can I change the order of the files after adding them?
Not in the list: merging follows the selection order shown below the import area. Reset and select the files in the order you want, or reorder the pages of the merged PDF afterwards.
How many files can I merge?
At least two, with no fixed maximum. Each PDF is limited to 100 MB; beyond that, your device’s memory limits how much can be processed at once.
Does page quality change?
No. Pages are copied as they are, with no recompression or conversion to images: text stays selectable and images keep their resolution.
Are bookmarks kept?
No. The PDF reader’s bookmarks panel will be empty in the merged file. If navigation matters, rebuild the outline in your original application before exporting.
Can I merge a protected PDF?
Only after unlocking it with its password, for example with the Unlock a PDF tool. An encrypted document cannot be read without that password.
Are my documents sent online?
No. Reading the files and assembling the pages happen inside the browser tab; closing the page is enough to release the data from memory.
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