PDF Metadata Editor
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View and edit PDF metadata: title, author, subject, keywords, and creator. Useful for SEO, organization, and rebranding.
PDF Merger
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Combine multiple PDF files into one document. Drag to reorder, remove unwanted files, download instantly.
PDF Merger
Drop 2 or more PDF files here
Drag to reorder after upload
About This Tool
What This Tool Does
Combines multiple PDF files into a single PDF in the order you choose. Files are processed entirely in your browser using pdf-lib — nothing is uploaded to any server.
How To Use
- Drop or select 2 or more PDF files
- Reorder them by dragging if needed
- Click Merge & Download
Common Uses
- Combine separate chapters into one ebook
- Bundle invoices for monthly accounting
- Merge scanned pages into a single document
- Combine signed contract pages into one final PDF
Tip: All bookmarks, form fields, and metadata from the first file are preserved. Annotations from later files may be flattened.
Frequently Asked Questions
Is there a file count limit?
Practically, around 20-30 PDFs work smoothly. Browser memory is the bottleneck. For 100+ documents, merge in batches of 10-15 then combine the batches.
Will bookmarks and form fields survive merging?
Form fields are preserved per page. Top-level bookmarks from each document may be flattened during merge u2014 pdf-lib copies page content faithfully but doesn't preserve all outline metadata. For complex publishing workflows, use Acrobat or qpdf desktop.
Are my files uploaded anywhere?
No. Everything runs in your browser. You can verify by opening DevTools Network tab during a merge u2014 no requests are sent. Confidential documents stay private.