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PDF Merger

Merge multiple PDFs into one. Reorder with drag and drop.

Maximum 10 files allowed. Total size must not exceed 50 MB. Invalid or corrupted PDF file. Add at least 2 PDF files to merge. Merge failed. Please try again.

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A PDF merger combines multiple PDF files into a single document. You choose the order of files, and the tool creates one PDF. Merging happens in your browser, so your files never leave your device. Our free PDF merger supports up to 10 files and 50 MB total, with drag-and-drop reordering.
  1. 1
    Upload PDFs

    Upload two or more PDF files by dragging them into the zone or clicking to select.

  2. 2
    Reorder Files

    Check the order of files. Drag and drop to reorder if needed.

  3. 3
    Merge

    Click "Merge PDFs" to combine all files into one.

  4. 4
    Wait for Processing

    Wait for the merge to complete. Processing happens in your browser.

  5. 5
    Download

    Download the merged PDF when ready.

  6. 6
    Merge Again

    Clear and add new files to merge again if needed.

  7. 7
    Reorder with Buttons

    Use the move up/down buttons to reorder without dragging.

  8. 8
    Remove a File

    Remove a file with the remove button if you added it by mistake.

What is a PDF merger?

A PDF merger combines multiple PDF files into a single document in the order you choose.

Is it free?

Yes. Our PDF merger is free. No signup or registration required.

Are my files secure?

Yes. Merging happens in your browser. Your files never leave your device.

How many files can I merge?

You can merge up to 10 PDF files at once.

What is the file size limit?

Total size of all files must not exceed 50 MB.

Can I reorder the pages?

Yes. Use drag and drop to reorder files before merging.

What if a file is corrupted?

The tool will show an error. Remove the invalid file and try again.

Can I merge scanned PDFs?

Yes. The tool works with any valid PDF, including scanned documents.

What format is the output?

The result is a single PDF file that you can download.

Do I need to install anything?

No. The tool runs in your browser. No installation or signup required.

Plan Document Order Before Merging

Arrange files in the intended reading order before merging. Reordering pages after merging is more work. Use drag-and-drop to set the correct sequence upfront.

Use Consistent Page Sizes

Merge documents with the same page size (A4 or Letter) for a uniform result. Mixing page sizes creates an inconsistent reading and printing experience.

Name Files Descriptively

Use clear file names (01-cover.pdf, 02-introduction.pdf) that reflect the document structure. This makes it easy to identify and reorder files before merging.

Add Bookmarks for Navigation

For long merged documents, add bookmarks or a table of contents so readers can navigate between sections easily. This is especially important for reports and manuals.

Compress After Merging

Merged PDFs can be large. Run the final document through a PDF compressor to reduce file size for easier sharing via email or web upload.

Review the Final Document

Always scroll through the merged PDF to verify page order, check for blank pages, and ensure all content transferred correctly before sharing or printing.

Handle Mixed Page Orientations Carefully

If merging documents with different orientations (portrait and landscape), check that your PDF viewer handles the rotation correctly. Some viewers may display landscape pages sideways. Use a consistent page orientation when possible.

Standardize Scans Before Merging

When merging scanned documents, ensure all scans are at the same resolution and orientation before merging. Inconsistent scan quality or rotation creates a jarring reading experience in the final document.

Merge for Professional Submissions

Use PDF merging to assemble multi-part submissions such as job applications (cover letter, resume, portfolio) or legal documents (contracts, exhibits, certificates). Submitting a single merged PDF is more professional and easier to track than multiple separate files.

Protect Sensitive Merged Documents

Password-protect sensitive merged PDFs that contain personal information, financial data, or confidential business content. Adding a password ensures only intended recipients can open and read the document.

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