Free tool

Merge PDF

Combine multiple PDF documents into a single organized PDF file in seconds. Free, fast, and 100% private.

Click to select PDF files or drag & drop

Select two or more PDF files to merge into a single document.

How to use Merge PDF

Select or drag and drop two or more PDF files.
Reorder the files using the up/down arrows to set your desired sequence.
Click "Merge & Download PDF" to instantly combine them into a single file.

Privacy model

All calculations, financial analytics, composition graphs, and amortization schedules run 100% locally in your browser memory. Your personal financial numbers are never uploaded to or stored on any server.

Common Questions

Frequently Asked Questions

Everything you need to know about using Merge PDF safely, accurately, and privately.

Are my PDF documents uploaded or stored on your servers?

No permanent storage exists on LoomFree. Client-side tools (like the PDF Editor, Splitter, and Rotator) execute entirely in your browser using HTML5 Canvas and WebAssembly. For tools requiring temporary server-side conversion, files are kept in isolated volatile runtime memory and immediately purged upon task completion.

Is there a limit on file size or the number of PDF pages?

LoomFree supports documents up to 50MB and hundreds of pages for standard operations without requiring any user registration or paid subscription.

Will the visual quality or formatting of my PDF be degraded?

No. Our PDF engine preserves original vector paths, embedded fonts, resolution, and layout formatting without introducing watermarks or compression loss.

Can I use Merge PDF on mobile devices?

Yes. The tool is fully responsive and optimized for touch interactions on smartphones and tablets, including iOS Safari and Android Chrome.