Merge PDF Files Online Free
Combine multiple PDF documents into one file with our free PDF merger tool. No upload required, 100% private processing in your browser.
Drop PDF files here
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Maximum 10 files, 50MB total
How to Merge PDF Files
- Click "Select Files" or drag and drop multiple PDF files into the upload area
- Arrange the files in your desired order by dragging them or using arrow keys
- Click "Merge PDFs" to combine them into a single document
- Download your merged PDF file
Why Merge PDFs?
Merging PDF files is useful for combining multiple documents into a single file for easier sharing, printing, or archiving. Common use cases include combining invoices, contracts, reports, or scanned documents. Our free PDF merger tool makes it simple to join PDF files without compromising quality or privacy.
Why Choose PDFNa for Merging PDFs?
Unlike other PDF merger tools that require uploading your files to a server, PDFNa processes everything directly in your browser. This means your sensitive documents never leave your computer, ensuring complete privacy and security. Plus, there's no waiting for uploads or downloads - merging happens instantly on your device.
Common Use Cases
- Combine multiple invoices or receipts into one file
- Merge contract pages and appendices
- Join scanned document pages
- Combine reports from different sources
- Create a single PDF portfolio from multiple documents
Privacy & Security
All PDF merging happens directly in your browser. Your files are never uploaded to any server, ensuring complete privacy and security. Once you close this page, all data is automatically cleared from your device's memory.
Frequently Asked Questions
How do I merge PDF files?
Click "Select Files" or drag and drop multiple PDF files into the upload area. Arrange them in your desired order, then click "Merge PDFs" to combine them into one document.
How many PDF files can I merge at once?
You can merge up to 10 PDF files at once. If you need to merge more, you can merge them in batches and then merge the results.
Can I change the order of PDFs before merging?
Yes, simply drag and drop the files in the list to reorder them before clicking "Merge PDFs".
Will merging PDFs reduce quality?
No, merging PDFs does not compress or reduce quality. The merged PDF contains exact copies of all pages from the original files.
Can I merge password-protected PDFs?
Currently, password-protected PDFs cannot be merged. You'll need to remove the password protection first.
How long does it take to merge PDFs?
Merging is usually instant for small files (under 5MB total). Larger files may take 10-30 seconds depending on the total size and number of pages.
Can I merge PDFs with different page sizes?
Yes, you can merge PDFs with different page sizes (A4, Letter, Legal, etc.). Each page will retain its original size in the merged document.
Is there a file size limit for merging?
The total combined size should be under 50MB for best performance. Larger files may work but could be slow or fail on devices with limited memory.