PDF Merger

PDF merging combines multiple PDF files into a single document. This is useful when you have separate PDF files that you want to consolidate into one file, such as combining chapters of a report, merging scanned documents, or consolidating contracts.

Yes, completely. All PDF processing happens locally in your browser using JavaScript. Your files are never uploaded to any server. Once you close or refresh the page, all data is automatically cleared from memory.

After uploading a PDF, click on the page range field next to the file. You can enter page ranges like "1-5" to include pages 1 through 5, or "1,3,5" to include specific pages. You can also combine them like "1-3,5,7-9". Leave it empty to include all pages.

There is no limit to the number of PDF files you can merge. However, very large numbers of files or extremely large file sizes may affect browser performance. For best results, we recommend merging up to 20 files at a time.

Yes! The merged PDF maintains the original quality of your source files. No compression or quality reduction is applied during the merging process. All text, images, and formatting are preserved exactly as they appear in the original documents.

Yes! Before merging, you can enter a custom filename in the "Output Filename" field. The .pdf extension will be added automatically. If you leave it empty, the default name "merged.pdf" will be used.

Yes! Our PDF merger works on all modern devices including smartphones and tablets. You can merge PDFs directly from your mobile browser without installing any apps. The interface is fully responsive for optimal mobile experience.

Our PDF merger supports all modern browsers including Chrome, Firefox, Safari, and Edge. For the best experience, we recommend using the latest version of your browser.

100MB per file. This limit ensures optimal browser performance during processing. For larger files, consider splitting them first or using desktop software. The total combined size of all files can exceed 100MB as long as each individual file is under the limit.

No. Password-protected or encrypted PDF files cannot be processed by this tool. Please remove the password protection using the original PDF editor before merging. This is a security limitation of browser-based PDF processing.

Partially. The tool needs an internet connection on first use to load the PDF processing library. Once loaded, the library is cached in your browser and you can merge PDFs offline. All file processing happens locally on your device.