Merge PDF Files Online
Combine two or more PDF files into a single organized document. Reorder files with one click, retain crisp vector fonts, and download directly in your browser.
Select or Drag Multiple PDF Files to Merge
Combine two or more PDF documents into one. Drag or use arrow keys to change document order before merging.
Related PDF Tools
Frequently Asked Questions
How do I merge multiple PDF files into one document?
Upload two or more PDF files using the upload zone or file picker. Arrange their order using the Move Up and Move Down buttons, then click "Merge PDF Files" to download your combined PDF immediately.
Can I reorder the sequence of documents before merging?
Yes. Each document displays its original page count and position number with accessible up and down arrows. SizeSnap binds them together strictly according to your selected sequence.
Are my confidential documents uploaded to any remote server?
No. SizeSnap runs the merging engine locally inside your browser using WebAssembly. Your documents never touch external servers or cloud storage.
Will bookmarks, vector text, and hyperlinks be preserved?
Yes. Unlike rasterizing tools that turn PDFs into flat images, SizeSnap copies pure PDF vector page streams, preserving sharp vector fonts, links, and original page geometry.