CompressoPanda
PDF PDF Tools

Merge PDF

Combine multiple PDF files into a single document. Reorder pages and merge instantly.

Selected files stay in your browser when this tool processes them locally

Merge Settings

Files to merge0
Total pages0
Total size0 B

How it works

  1. Upload multiple PDF files
  2. Reorder using up/down buttons
  3. Click Merge to combine
  4. Download the merged PDF
📎

Drop PDF files here

or click to browse — Upload multiple PDFs to merge

merge pdf - free online tool

About This Tool

Combine several PDFs into one document, in your chosen order, fully in your browser. Build a single application file from cover letter + CV + certificates, merge monthly invoices, or assemble chapter PDFs into one book file — without uploading any document to a third-party server. Page-level reordering is supported: you can interleave documents page by page, not just append whole files.

How to Use This Tool

  1. Drop two or more PDFs — each appears as a card with a page-count badge.
  2. Drag the cards into the order you want them in the final document.
  3. Optionally expand a card to exclude specific pages (deselect the pages you don't need).
  4. Merge and download the combined PDF.
  5. Open the result and check the page flow — total pages should equal the sum of kept pages.

Advantages & Use Cases

Assemble a grant application (form + annexes + budget), merge a signed contract with its appendices, or combine scanned receipts into one accounting file. Students merge assignment cover sheets with their work before portal submission.

Supported Formats & Recommendations

  • Mixed page sizes (A4 + Letter) are kept as-is per page; most viewers handle this fine, but unify sizes first if you plan professional printing.
  • Bookmarks and links of source PDFs are not carried over — merge final versions.
  • Very large merges (500+ pages) work but take a few seconds; the progress bar keeps you informed.

How We Test This Tool

Each release merges a 3-document set (text PDF, scan, one with rotated pages) and verifies in an independent reader: page order matches selection, rotation is preserved, page count equals the sum, and no cross-document font conflicts appear.

Related Tools You May Like

Helpful Resources

Frequently Asked Questions

Can I merge only some pages of each PDF?

Yes — expand a document card and deselect pages. Deselected pages are simply skipped, in order, which also lets you build custom extractions.

Why is the merged file bigger than expected?

The output embeds each source as-is; scanned pages dominate the size. Run the merged file through PDF Compress afterward for a slim final version.

Is it safe to merge confidential contracts here?

The merge runs in your browser via JavaScript; the files never leave your device. You can disconnect from the internet after loading the page to confirm.