PDF Merge & Combiner
Merge multiple PDF files into a single unified document directly in your browser. Reorder documents with simple controls, inspect page counts, and export the combined PDF instantly with zero server uploads.
How to use
Drop or select two or more PDF files to add them to the merge queue.
Use the Up and Down arrow buttons to arrange documents in your preferred reading sequence.
Check individual page counts and overall combined document size.
Click 'Merge PDFs' to combine all files into one unified document.
Download your merged PDF file instantly.
Combine PDF documents locally with 100% privacy
Combining multiple PDFs into a single file is essential when assembling business proposals, invoices, legal exhibits, academic submissions, or tax returns. While most online tools require uploading private records to third-party cloud servers, this tool operates entirely inside your browser using pdf-lib WebAssembly and JavaScript primitives. Your sensitive records never leave your device.
Reorder files effortlessly
Arrange your PDFs in the exact order you want them merged. Move documents up or down with a single click, view file sizes, and verify page counts before compiling.
Lightning-fast and unlimited
Because there is no network transfer or upload lag, files are merged directly in memory at local disk speeds. Combine files as often as you need with no subscriptions, queues, or watermarks.
Frequently asked questions
Are my files uploaded to your servers when merging?
No. The merge process executes entirely within your browser memory. Your documents are never sent across the internet.
How many PDF files can I merge together?
You can merge multiple PDF documents in one operation. Browser memory easily handles dozens of documents.
Can I reorder the PDF documents before combining them?
Yes. Each item in the queue features Move Up and Move Down buttons so you can arrange your files in any order.
Does merging affect document quality or vector graphics?
No. Vector graphics, fonts, tables, and images are preserved losslessly from the original documents.