Is there a limit to the size or number of PDFs I can combine?

No. Since processing runs entirely on your local computer's browser, there are no artificial file limits. You are only limited by your system's RAM.

Are original interactive PDF forms preserved?

Yes. The merge engine preserves internal forms, annotations, paths, links, and text layers cleanly.

Document

Select and arrange multiple PDF files to combine them into one.

Drag & drop multiple PDFs here to combine them.

Preparing in-browser processing modules. Zero network uploads.

Read our complete step-by-step guide to local-first PDF merging.

Follow these simple steps to process your files locally in seconds.

Select or drag multiple PDF files into the upload area.

Drag and drop the file cards in the preview layout to set your preferred combining sequence.

Click the Merge button to compile the files, then download the merged PDF.

100% Client-Side

All calculations run exclusively inside your browser. No files are ever sent to our servers.

Private & Secure

Your data remains entirely yours. Ideal for processing sensitive business or personal files safely.

No Limits, No Fees

No account registration, no file size limitations, and no watermarks added to final results.

Got questions about using the PDF Merger? Find answers here.