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Merge PDF Files

Combine Multiple PDF Files

Upload multiple PDF files and merge them into a single document. Drag and drop to reorder the files before merging.

Features

Merge unlimited PDF files up to 50MB each
Drag and drop to reorder files before merging
Preserves original document quality and formatting
100% client-side processing - your files never leave your device

About PDF Merger

Combine multiple PDF files into a single, unified document with our intuitive PDF merger tool. Whether you need to merge contracts, reports, invoices, or any other PDF documents, this tool makes it simple. Drag and drop to reorder files, preview page counts, and create a seamlessly merged PDF in seconds. Perfect for consolidating related documents, creating comprehensive reports, or organizing scattered PDF files into one convenient package.

How to Use PDF Merger

1

Upload Multiple PDF Files

Click the upload area or drag and drop multiple PDF files at once. The tool will display all uploaded files with their names, file sizes, and page counts. You can upload files one at a time or all together - the choice is yours.

2

Arrange File Order

Drag and drop the PDF files in the list to arrange them in your desired order. The files will be merged in the exact order shown, from top to bottom. You can also remove any files you don't want to include by clicking the trash icon.

3

Merge the PDFs

Once you're satisfied with the file order, click the "Merge PDFs" button. The tool will combine all files into a single PDF document, preserving all pages, formatting, and content from each original file.

4

Download Your Merged PDF

After processing completes, download your merged PDF file. The filename will be "merged-document.pdf" by default. You can then rename it as needed or merge additional files by starting a new session.

Common Use Cases

Contract Consolidation

Merge multiple contract pages, addendums, and amendments into a single comprehensive contract document. Legal professionals can create complete contract packages that include all related documents in proper order.

Report Compilation

Combine separate report sections, executive summaries, data appendices, and supporting documents into one complete report. Perfect for business reports, research papers, or academic submissions that require multiple components.

Invoice and Receipt Organization

Merge monthly invoices, receipts, and financial documents into single PDF files for easier accounting and record-keeping. Accountants and bookkeepers can create organized monthly or quarterly financial packages.

Application Packages

Combine resume, cover letter, references, and portfolio samples into a single PDF for job applications. Create complete application packages that are easy for recruiters to review and keep organized.

Meeting Materials

Merge agenda, presentation slides, handouts, and reference materials into one PDF for meeting attendees. Simplify document distribution and ensure everyone has all necessary materials in one file.

Book and Manual Creation

Combine individual chapters, table of contents, and appendices into a complete book or manual. Authors and technical writers can assemble multi-chapter documents from separate files.

Tips and Best Practices

  • Check File Order: Always review the file order before merging. The drag-and-drop interface makes it easy to rearrange files, but double-checking ensures your final document flows correctly.
  • File Size Considerations: Each PDF can be up to 50MB. If you're merging many large files, the final PDF may be quite large. Consider using our compression tool afterward if needed.
  • Page Count Preview: The tool shows the page count for each PDF. Use this to verify you're merging the correct files and to estimate the total length of your merged document.
  • Batch Processing: You can merge as many PDFs as needed in one operation. There's no need to merge files two at a time - upload all files at once for faster processing.
  • Quality Preservation: The merging process preserves all original content, formatting, fonts, images, and metadata from each PDF. Your merged document will maintain the quality of the source files.

Frequently Asked Questions

How many PDF files can I merge at once?

There is no strict limit on the number of PDF files you can merge. However, for optimal performance, we recommend merging fewer than 20 files at a time. Each file can be up to 50MB in size. If you need to merge more files, consider doing it in batches.

Will the merged PDF maintain the original quality?

Yes, absolutely. Our merging process preserves all content, formatting, fonts, images, and quality from the original PDFs. The merged document is a true combination of your source files without any compression or quality loss.

Can I merge password-protected PDFs?

Currently, our tool cannot merge password-protected or encrypted PDF files. You will need to remove password protection from the PDFs before merging them. This is a security measure to ensure only authorized users can modify protected documents.

What happens to bookmarks and links in the original PDFs?

Internal bookmarks and links within each PDF are preserved in the merged document. However, bookmarks may need to be reorganized as they will reference their original page numbers. External links and hyperlinks remain functional.

Can I merge PDFs with different page sizes?

Yes, you can merge PDFs with different page sizes (e.g., A4 and Letter). Each page in the merged PDF will retain its original dimensions. This means your merged document may contain pages of varying sizes, which is perfectly valid for PDF files.

How long does the merging process take?

Merging time depends on the number of files, total page count, and file sizes. Typically, merging 2-5 PDFs takes just a few seconds. Larger batches with many pages may take 10-30 seconds. The tool shows progress during processing.

Is there a way to add page numbers to the merged PDF?

The basic merge function combines PDFs as-is without adding new content. If you need to add page numbers or other elements to the merged PDF, you would need to use a PDF editing tool after merging.

Can I preview the merged PDF before downloading?

Currently, the tool creates the merged PDF and makes it available for download immediately. You can open the downloaded file to review it. If you need to make changes to the order or content, simply start a new merge operation.

Your Privacy is Protected

All PDF processing happens entirely in your web browser. Your files are never uploaded to any server, ensuring complete privacy and security. This means:

  • Your sensitive documents remain on your device
  • No data is stored or transmitted over the internet
  • Works offline once the page is loaded
  • 100% free with no registration required