Split PDF
Extract specific pages or ranges from a PDF.
Merge PDFs
Merge multiple PDF files into one PDF online for free. Reorder files before combining them, then download one clean document from any modern browser.
The interactive workspace opens when JavaScript is available. Instructions and related guides are readable below.
About Merge PDFs
Our Merge PDF tool allows you to combine multiple documents into a single, professional PDF file in seconds. This tool runs locally in your browser using high-performance JavaScript, so your source PDFs stay on your device while the merged file is created.
How to use Merge PDFs
- Choose two or more PDF files.
- Use the move buttons to arrange the files in their final order.
- Merge the files, download the result and check the page order.
Where processing happens
Files are combined in your browser; this tool does not upload the source PDFs.
Important limitations
Up to 30 files, 25 MB per file, 50 MB combined and 200 output pages. Unlock encrypted inputs first. Existing certificate signatures may be invalidated by editing.
When to use it
Student Submissions
Combine your cover page, essay, and references into one clean file for submission.
Business Contracts
Merge signed addendums with your main agreement for a complete record.
Portfolio Building
Join multiple project PDFs into a single showcase document.
Questions and answers
Is there a limit to how many files I can merge?
Use up to 30 files, 25 MB per file, 50 MB combined, and 200 output pages. Processing speed depends on your device.
Will the quality of my PDFs decrease?
No. Our merging algorithm preserves the original quality and resolution of every page.
Can I reorder pages?
You can reorder files here. For individual page previews, rotation, removal and ordering, use the guided Flow workflows.
Choose the operation that matches your document: merging combines files, splitting selects pages, conversion changes formats and compression targets file size. Keep an original copy and inspect the exported document.
Read about data handling and clearing saved local work
Practical guides
Related tools
Compress PDF
Compress PDF files with server-assisted processing and compare the output size.
Convert PDF
Convert PDF to Word, Excel, PowerPoint, images, or back to PDF.
E-Sign PDF
Create an electronic signature and sign your documents.
Protect PDF
Add password protection and encryption to your PDFs.