When you're in a hurry, you want your PDFs merged instantly. Fast-merge mode prioritizes speed by processing documents efficiently, making it ideal for repetitive tasks, business workflows, or merging many small files in seconds.
Drag and drop files here, or click to select
Most merges complete in under a second depending on your device and connection.
No. Fast mode does not compress or modify page content.
Yes — it's perfect for office workflows and batch operations.
Large files may take longer, but fast mode still improves speed.