Video Tutorial by Gauging Gadgets
Merge multiple PDF files into one document — free, fast, and private.
Open Merge PDF Tool →Staring at a folder full of separate PDF files that should really be one document? Maybe it's a contract split across multiple scans, chapters of a report from different authors, or a collection of receipts you need to submit together. Whatever the situation, combining them shouldn't require expensive software or uploading sensitive files to unknown servers.
PDFGadget's merge tool handles all of this directly in your browser. Your files never leave your device, the combining happens locally using your computer's processing power. The result is a single, organized PDF ready to share or archive.
Head to pdfgadget.com/merge-pdf in any browser. Chrome, Firefox, Safari, Edge; they all work. The tool loads instantly with no plugins or downloads required.
Click the upload area or drag and drop your PDFs directly onto the page. You can select multiple files at once from your file browser. There's no limit to how many PDFs you can combine — add two files or twenty.
Your files appear as thumbnails showing the first page of each PDF. Drag them around to set the sequence you want in the final document. The top file becomes the first pages of your merged PDF.
Hit the Merge button. The tool combines everything in seconds, you'll see a progress indicator for larger files. When it's done, Click download to save your the merged PDF. The original files stay completely untouched.
Plenty of tools claim to merge PDFs for free, but most have catches like file size limits, watermarks, or mandatory uploads to their servers. Here's what makes this different:
Your combined PDF downloads automatically. From there you can:
Make sure you're selecting actual PDF files, not shortcuts or links. If a file was downloaded from email, it might still be downloading, wait for it to complete before adding it to the merge tool.
Before clicking Merge, drag the thumbnail cards to rearrange them. The order you see is the order you'll get. If you've already merged, just start over, your original files aren't modified.
Merging dozens of large PDFs at once can use significant memory. Try merging in smaller batches if your browser struggles, then merge those combined files together.
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No artificial limit. You can merge as many files as your browser can handle. For extremely large jobs, your computer's available memory becomes the practical limit.
No. PDFGadget combines the files without recompressing images or altering content. What goes in comes out at the same quality.
Only if they're unlocked. If a PDF requires a password to open, you'll need to enter that password first (in another PDF reader), then save an unlocked copy to merge.
No. Everything happens locally in your browser using JavaScript. Your PDFs never leave your device. You can verify this by disconnecting from the internet after the page loads; the tool still works.
Absolutely. The tool works in mobile browsers on iPhone and Android. Check out our device-specific tutorials for iPhone for detailed mobile instructions.
We have a tool for that too. Split PDF lets you extract specific pages or divide a document into separate files.