Merge PDF
Combine multiple PDF files into one, in the order you choose.
Click to select PDF files, or drag and drop them here
Select two or more PDFs to merge
What Is the Merge PDF?
How Is the Merge PDF Calculated?
Each selected PDF is read directly from your device, and every page from every file is copied — in order — into one new PDF document. Nothing is rendered or flattened, so text, links, and formatting in the original files are preserved.
Merge PDF Example
Merging a 2-page cover letter with a 5-page resume produces a single 7-page PDF, with the cover letter first if it's listed first.
How to Use the Merge PDF
Step 1
Click the upload area or drag and drop two or more PDF files onto it.
Step 2
Reorder files with the ↑ / ↓ buttons — this sets the order pages appear in the final PDF.
Step 3
Click Merge & Download to save the combined file.
Benefits
- Combines multiple PDFs into one without installing any software.
- Processes everything locally in your browser — files are never uploaded anywhere.
- Lets you reorder files before merging, so you control the final page order.
Common Merge PDF Scenarios
Scenario 1
Combining a cover letter and resume into a single application PDF.
Scenario 2
Merging scanned pages or reports from multiple sources into one document.
Scenario 3
Assembling several invoices or receipts into one file to send or archive.
Understanding Your Result
The downloaded file contains every page from every selected PDF, concatenated in the order shown in the list — nothing is removed, resized, or re-compressed.
Tips
- Double-check the file order before merging — the ↑ / ↓ buttons are the only way to change it.
- Very large PDFs (hundreds of pages or large embedded images) may take a few seconds to process.
- If a file fails to merge, confirm it isn't password-protected or corrupted.
Common Mistakes
- Forgetting to reorder files before merging — the output follows the exact order shown in the list.
- Trying to merge a password-protected PDF, which this tool can't open.
- Selecting only one file — merging needs at least two PDFs.
Frequently Asked Questions
Are my PDF files uploaded to a server?
No, all processing happens locally in your browser using JavaScript — your files never leave your device.
Is there a limit to how many PDFs I can merge?
There's no hard-coded limit, but a very large number of files or pages may slow down your browser since everything is processed in memory.
Can I merge password-protected PDFs?
No, encrypted or password-protected PDFs can't be read by this tool — remove the password first using your PDF reader, then merge.
Will the merged PDF preserve text and links?
Yes, pages are copied as-is, so selectable text, links, and formatting from the original files are preserved.
Can I merge PDFs with different page sizes?
Yes — the merged PDF will contain each original page at its own size, since merging doesn't resize or standardize page dimensions across the combined file.
Does merging combine PDFs that have different passwords?
Password-protected PDFs generally need to be unlocked before merging, since combining tools typically can't merge multiple differently-encrypted files directly.
Can I rearrange the page order after merging, not just before?
Rearranging is typically done before merging by ordering your selected files — use a Rotate or Delete Pages tool afterward if you need further adjustments to the merged result.
Will merging PDFs combine their metadata, like author and title?
Metadata handling varies by tool — the merged file typically gets fresh or default metadata rather than automatically combining metadata from each source file.
Can I merge PDFs with different orientations, like portrait and landscape?
Yes — each page retains its own original orientation in the merged file, so mixed portrait and landscape pages will appear correctly as they were in the source documents.
Important Information
Files are read and merged locally in your browser and are never uploaded to a server.
Last updated: July 31, 2026