Merge PDF

Drag and drop PDFs here • Max 100 MB each • Add at least 2 PDFs

Free browser-based PDF tool

Merge PDF Files Online

Combine multiple PDF files into one document online for free. Arrange PDFs in the correct order, remove unwanted files, rename the output and download your final merged PDF with browser-based processing.

Browser-basedFree PDF mergerCombine multiple PDFsArrange file orderNo signup

How to merge PDF files online

Upload PDF files

Select or drag and drop two or more PDF files into the merge tool.

Check file details

Review file name, size, page count and status for every uploaded PDF.

Arrange file order

Use Move Up and Move Down to arrange PDFs in the exact final order.

Enter output file name

Choose a name such as combined-report.pdf or application-documents.pdf for the final merged PDF.

Merge and download

Click Merge PDF Files and download the combined PDF file to your device.

The order shown in the tool becomes the final merged PDF order. Keep cover pages, application forms or main reports at the top, then place supporting documents such as certificates, invoices, receipts or scanned attachments below them.

Use a clear output file name such as combined-report.pdf, application-documents.pdf or merged-invoices.pdf so the final PDF is easy to identify later.

Combine PDF files

Merge multiple PDF documents into a single file for office work, applications, reports, invoices, scanned documents and record keeping.

Arrange PDF order

Move PDFs up or down before merging. The file order shown in the list becomes the exact order of the final combined PDF.

Fast browser processing

Merge PDFs directly in your browser and avoid unnecessary upload waiting time for faster document preparation.

Best use cases

Combine invoices, receipts and payment documents.
Merge certificates and ID documents for online submissions.
Create one PDF from scanned application documents.
Combine project reports, annexures and supporting files.
Merge academic notes, assignments and study material.
Prepare a single PDF for email, WhatsApp or cloud sharing.

PDF merge tips

Arrange files carefully before clicking merge.
Remove files marked with errors before creating output.
Use a clear output name for better organization.
Open the final merged PDF once to confirm page order.
Merge related documents only to keep the final PDF readable.
Compress the merged PDF later if the final size is too large.

Important note

Ensure your PDFs are in the correct order before merging. The top file appears first in the final output, and each PDF is added from first page to last page.

Your original files remain unchanged. Always open the merged PDF after download to confirm page order and completeness before sharing, printing or submitting it. Password-protected, corrupted or unsupported PDFs may not process correctly.

PDF Merge FAQ

How do I merge PDF files online?

Upload two or more PDF files, arrange them in the correct order, enter an output file name and click Merge PDF Files. The tool creates one combined PDF.

Can I merge more than two PDF files?

Yes. You can add multiple PDF files and merge them into one final document. This tool supports up to 30 PDF files.

Can I change the order of PDFs before merging?

Yes. Use Move Up and Move Down to arrange files. The top file appears first in the final merged PDF.

Can I remove a PDF after adding it?

Yes. Click Remove next to any file you do not want to include in the final merged PDF.

Does this PDF merge tool upload my files?

The tool is designed for browser-based processing, which helps reduce upload delays and makes merging faster.

Is this PDF merge tool free?

Yes. SmartTools PDF Merge is free to use online.

Can I rename the merged PDF?

Yes. You can enter a custom output file name before clicking the merge button.

Will the original PDF files change?

No. Your original PDF files remain unchanged. The tool creates a new merged PDF file for download.

What happens if one PDF file has an error?

Files that cannot be read are marked with an error. Remove the error file and add a valid PDF before merging.

Will the page order remain correct?

Yes. The final PDF follows the file order shown in the tool. Each PDF is added from first page to last page.

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