PDF Tools

Free PDF Merger Online — Combine PDF Files in Any Order

Merge multiple PDF files into a single document in seconds. Drag to reorder files, select specific page ranges from each PDF, and set title and author metadata on the final output. Everything runs locally in your browser with no file size limits.

  • ✓Drag to reorder PDF files before merging
  • ✓Select specific page ranges from each file
  • ✓Shows page count and file size for each PDF
  • ✓Set title, author and subject on merged output
  • ✓Download merged PDF instantly — no wait time
  • ✓Your files never leave your device — 100% private
📑
Drop PDFs here or click to browse
Add at least 2 PDFs · Drag the list below to reorder

How to Merge PDF Files

1
Upload your PDFs
Drop multiple PDF files into the upload zone. Each file shows its page count and file size.
2
Reorder & set page ranges
Drag files to set the order they'll appear. Optionally enter a page range for each file (e.g. 1-3, 5).
3
Add metadata (optional)
Set a title and author on the merged PDF — useful for sharing or archiving.
4
Merge and download
Click Merge. The combined PDF downloads instantly — no waiting, no server upload.

❓ Frequently Asked Questions

Is there a limit to how many PDFs I can merge?+
There is no hard limit. You can merge as many PDFs as your device's memory allows. For very large sets (50+ files or files over 50 MB each), we recommend merging in batches to avoid browser memory pressure. The final merged PDF can be any size — the tool processes everything locally without any server-side restrictions.
Can I choose specific pages from each PDF to include?+
Yes. Click the page range field next to each file and enter a range like '1-5, 8, 10-12'. Leave the field blank to include all pages from that file. Page ranges follow standard notation: single numbers (5), inclusive ranges (1-3), and comma-separated combinations (1-3, 5, 7-10). Only the specified pages will appear in the merged PDF.
Does merging PDFs preserve hyperlinks, bookmarks and form fields?+
Hyperlinks and basic formatting are preserved in the merged output. PDF bookmarks (outline/table of contents) from individual files are not carried over, as combining bookmarks from multiple sources can create conflicts. Form fields are preserved but may have overlapping field names when merging forms — if this is a concern, flatten the forms before merging. Annotations and comments are preserved.
Will the page order be exactly how I arranged the files?+
Yes. The merged PDF's page order follows your file list from top to bottom. Drag files to reorder them before merging. Each file's pages appear in their original order (or in the order you specified via page ranges). To reverse a specific file's pages, split it first and reorder the split pages.
Can I merge password-protected PDFs?+
Password-protected (encrypted) PDFs cannot be merged without first removing the password. Some PDFs have owner restrictions (no editing) but no user password — these can sometimes still be processed. If you receive an error for a specific file, that PDF has encryption that prevents modification. Decrypt it using its password before trying to merge.