Merge PDF documents online
Combine multiple PDF documents into a single PDF file for free. No registration or installation required.
Step-by-Step Guide on Merging PDF Files Online
Click on the dashed area to select your PDF files or drag and drop them into the designated upload space.
Once your PDF files are selected, click the 'Merge PDFs' button to initiate both the upload and merging process.
After the merging process is complete, a 'Download PDF' link will appear. Click this to download your single, merged PDF document.
Frequently Asked Questions
No. OptiPDF combines your PDF files without re-encoding them, so the original quality of text, images, and formatting is fully preserved.
You can merge up to 10 PDF files at a time, with each file up to 100MB in size.
Yes. After uploading your files, you can rearrange them in the file list before merging.
All uploaded files are processed securely and automatically deleted from our servers after processing. We never store, read, or share your documents.
Yes, completely free. No hidden fees, no watermarks, no registration required. Just upload and merge.