PDFBook Merge PDF combines several PDF files into one document, right in your browser. Unlike cloud-based tools, your files are never uploaded to a server: the whole merge runs locally on your device, so your documents stay private.
Key Facts
- No artificial file-size cap: large files are limited only by your device's memory
- Keeps each page and its links intact (document bookmarks and form fields are not carried over)
- Lossless: combines the original PDF pages without re-encoding text or images
Frequently Asked Questions
How to merge PDF files online for free?
PDFBook lets you merge PDF files for free directly in your browser. Drag and drop your PDFs into the merge tool, arrange them in the order you want, and click Process. The combined PDF downloads right away, with no account, no watermark, and no file-size limit.
Is it safe to merge PDFs online?
With PDFBook, merging PDFs is safe because your files never leave your device. All processing happens locally in your browser. No data is uploaded to any server, so there is no risk of interception or third-party access.
Can I combine PDFs without Adobe?
Yes. PDFBook is a free, browser-based alternative to Adobe Acrobat for combining PDFs. It works on any operating system with a modern browser, including Windows, Mac, Linux, and Chromebook, with no software to install.
How to merge PDF without losing quality?
PDFBook performs a lossless merge by combining the raw PDF structures without re-encoding images or text. The output keeps the same quality, fonts, and resolution as the originals, and bookmarks, hyperlinks, and form fields are preserved as well.
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