Merge PDF Files Online
Combine multiple PDF documents into one file. Arrange the files, remove unwanted documents, and download your merged PDF.
Files are processed in your browser. The PDF merging library is loaded from a public CDN, so an internet connection is needed to use this tool. Password-protected or damaged PDFs may not be supported.
Merge PDF Files Online for Free
When several documents need to be submitted together, keeping them in separate files can be inconvenient. This free Merge PDF tool lets you combine multiple PDF files into one document. Select your files, arrange them in the required order, and download a single merged PDF.
How to Combine Multiple PDF Files
- Click Select PDF Files and choose the documents you want to combine.
- Check the file list and arrange the documents in the correct order.
- Use the Remove button to exclude any file you do not need.
- Click Merge PDF Files and wait for processing to finish.
- Download the combined PDF document.
Combine PDF Documents in the Right Order
The order of documents matters when preparing applications, reports, invoices or study notes. Use Move Up and Move Down beside each file to organise the list before merging. The pages from each PDF are added in that file's existing page order.
When Is a PDF Merger Useful?
- Combining several reports into one document.
- Putting scanned PDF documents together for an application.
- Joining invoices, receipts or business records.
- Combining notes and reading materials for study.
- Preparing one PDF for easier sharing or uploading.
Does Merging PDFs Reduce File Size?
Not necessarily. Merging combines the pages into one document; it does not automatically compress the contents. The resulting PDF size depends on the original files and the resources they contain. If a website has a file-size limit, you may need to compress the merged PDF separately.
Is It Safe to Merge PDF Files Online?
This tool processes the selected PDF documents locally in your browser rather than sending them to a PDF conversion server. The library used for merging is downloaded from a public CDN. For confidential documents, use a trusted device and avoid sharing the resulting file with unauthorised people.
Frequently Asked Questions
Can I merge PDF files for free?
Yes. Select your PDF documents, arrange them, and use the merge button to create one combined file.
Can I combine more than two PDF files?
Yes. This tool allows you to select multiple PDF documents, subject to its file-count and size limits.
Can I change the order of PDF files?
Yes. Use Move Up and Move Down before merging to decide the order in which each document appears.
Will merging change the original PDFs?
The tool creates a new merged file. It does not overwrite the original files on your device.
Why did my PDF fail to merge?
A file may be damaged, password-protected, or use features that the merging library cannot process. Try opening the PDF first or using an accessible, unprotected copy.
Can I merge PDFs on a mobile phone?
Yes. Open the tool in your mobile browser, select the PDF files and download the merged document. Large files may require more device memory.
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