Combine PDFs in the browser
Add the files in the order you want them to appear. Each page is copied into one PDF named merged.pdf. Locked files need the password removed first with Unlock PDF, using the password you already know.
To break a merged file apart again, use split PDF. To turn photos into a PDF first, use JPG to PDF.
Frequently asked questions
No. The PDFs are combined in your browser and the result downloads to your device.
Yes. Files are added in the order you select or drop them. Page order inside each file stays the same.
A password-protected PDF cannot be copied until you unlock it with the password you already use to open it.