Merge PDF Online for Free
Combine multiple PDF documents into one seamless, organized file directly in your browser. Rearrange files with drag-and-drop, remove unnecessary items, and download the combined PDF in seconds without server uploads.
Select or Drop PDF Files to Merge
Select 2 or more PDF documents. You can reorder them before merging.
How to Use Merge PDF in PDFArk
Upload Files
Select or drag & drop two or more PDF files into the upload area.
Reorder Documents
Drag files into the exact sequence you want them to appear in the merged document.
Merge & Download
Click "Merge PDF" and instantly save your combined document to your computer.
Why Choose PDFArk Merge PDF
Frequently Asked Questions
Are my merged files uploaded to a remote server?
No. All processing happens locally in your web browser using WebAssembly and client-side JavaScript. Your files never leave your device.
Is there a limit on file size or number of files?
You can combine up to 30 files or approximately 100 MB per batch. Because processing uses your browser memory, performance depends on your local device.
Will bookmarked links and forms be preserved?
Yes, standard PDF structures including vector shapes, text fonts, and page elements are carefully merged and preserved.