Merge PDF Files Online
Combine multiple PDF files into one document. Drag and drop to reorder files before merging.
Drop PDF files here, or click to browse of file(s) ready
Select between 2 and 10 PDF files. They will merge in the order shown below.
Please wait for all uploads to finish before merging.
Your merge list is ready.
2 to 10 files • Max 150MB each
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Merge PDF
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Upload at least 2 PDF files. They merge in the order shown on the left.
Step 1
Upload your PDFs
Step 2
Arrange the order
Step 3
Merge and download
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Please wait until all PDFs are ready before starting the merge.
Your merged PDF is ready
How to Merge PDF Files — Step by Step
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1
Upload your PDF files
Click the upload area or drag multiple PDFs onto it. You can add up to 10 files, each up to 150 MB.
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2
Set the page order
Drag the file tiles to arrange them in the sequence you want. The file at the top becomes the first section of the merged PDF.
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3
Click Merge PDF and download
Processing takes 10–30 seconds. Download the combined file and scroll through it to confirm the page order is correct.
Combining PDF Files: Tips for a Clean Result
Getting the page order right before you click merge saves time. Plan the logical sequence first — for a job application that is typically cover letter, CV, then certificates. For a legal packet it is usually the main agreement followed by schedules and the signature page. Numbering source files before uploading (e.g., 01-cover.pdf, 02-resume.pdf) makes ordering straightforward.
Merging combines files exactly as they are: no re-encoding, no quality change. However, if one source PDF is password-protected, remove the password first using Unlock PDF. If the merged result is too large to email or upload, run it through Compress PDF as a follow-up step.
After merging, if the page order is still not right you can fix it without starting over — upload the merged file to Organize PDF to reorder or delete individual pages. Adding page numbers is also best done after merging, not before, so the numbering runs continuously across the full document. Read the complete merge PDF guide for more tips.
Frequently Asked Questions
Is the PDF merger tool really free?
Yes, our PDF merger is free to use within the listed upload limits. You can merge up to 10 PDF files at once with no registration and no watermarks.
How many PDF files can I merge at once?
You can merge between 2 to 10 PDF files in a single operation. Each file can be up to 150MB in size. Simply upload your files, reorder them as needed, and merge.
Are my PDF files safe when merging?
Absolutely. We use SSL encryption for all file transfers. Your PDFs are processed securely and automatically deleted from our servers after a short period. We never store or share your files.