PDF Merger

To merge PDF files online, upload your PDFs using the drag-and-drop area or click to browse your files. Reorder the files by dragging them into the correct sequence, then click the Merge button. Your combined PDF is generated instantly in your browser and ready to download — no account required.

You can merge up to 20 PDF files in a single operation using our free PDF merger. There is no restriction on the number of pages within those files. If you need to combine more than 20 PDFs, simply merge them in batches and merge the resulting files together.

Each individual PDF file can be up to 100MB. If your files are larger, we recommend compressing them first using our free PDF Compressor tool to reduce the size before merging. This also results in a smaller final merged document.

No. All PDF merging happens entirely inside your web browser using JavaScript. Your files are never uploaded to any external server, shared with third parties, or stored anywhere. Your documents remain completely private and under your control at all times.

Yes. After uploading your PDFs, you can drag and drop the file cards to reorder them before merging. The final merged PDF will follow the order you set. You can also remove individual files from the list if you change your mind.

No. Our PDF merger combines your documents without re-encoding or compressing any content. Text, images, fonts, and vector graphics retain their original quality. The merged output is a standard PDF that preserves all formatting from your original files.

Yes. Our PDF merger is fully responsive and works on all modern mobile browsers including Safari on iPhone and Chrome on Android. Simply open the tool on your phone, upload your PDFs from your local storage or cloud app, and merge them directly on your device.

You can merge any standard PDF files, including scanned documents, digitally created PDFs, password-free protected PDFs, and PDFs with embedded images or forms. Note that password-protected PDFs must be unlocked before merging.

This can happen when PDF files contain embedded fonts, metadata, or resources that are duplicated in the merged output. To reduce the size, run the merged PDF through our free PDF Compressor tool after merging to significantly reduce file size without quality loss.

Yes. The PDF Merger is 100% free with no usage limits, no watermarks added to your documents, no sign-up required, and no premium tier. You can merge as many PDFs as you need, as often as you need, completely free forever.