Combine multiple PDFs into a single document. Fast, free, and private.
Drop your PDFs here
or click to browse from your device
Compiling financial reports, organizing a portfolio, joining scanned chapters into one book: this tool stitches any number of PDFs together right in your browser.
Drag and drop your PDF files into the designated area above, or click to select them from your device.
Drag the files in the list to rearrange them into the exact order you want them to appear in the merged document.
Click the 'Merge PDFs' button. Your files will be instantly combined, and the new PDF will be ready to download.
Your files are never uploaded to our servers. All merging happens locally in your web browser, ensuring complete privacy and security for your sensitive documents.
We don't restrict you with daily usage limits or lock basic features behind a premium paywall. Combine as many documents as you need, entirely for free.
Our intuitive drag-and-drop interface lets you visually reorder your files before the final merge. Simply grab a file block and move it up or down the queue.
Yes, absolutely. Unlike other online tools, PDFUp processes your files locally using your browser's memory. Your files are never uploaded to any remote server, meaning nobody else can access them.
Because the merging happens on your device, the only limit is your device's memory capacity. Most modern laptops and phones can easily handle hundreds of megabytes of PDFs.
No. We believe in providing truly free tools. Your merged document will not have any watermarks or branding added to it.
Merging usually means working with files you'd rather not share: tax returns, signed contracts, personal portfolios. Most online tools upload those files to their servers first, and then you're just hoping they delete them later. This merger runs entirely on your device, so nothing is ever sent across the internet.
Drag in a stack of reports, reorder them the way you want, and stitch them into one file. It's fast too; no upload, no download, no waiting. The moment you click merge, the new document is ready to save.
Related reading: merging PDFs offline without losing quality.