Build your merged PDF
or drag & drop PDF files here
Final page order
Drag page thumbnails to reorder. Click a page to select it for rotation. Use × to remove it.
Merged PDF preview
Final output only — verify the layout before downloading.
How to merge PDF files
- Add two or more PDF files.
- Reorder files or individual pages and rotate pages if needed.
- Choose Normal, Side by side, or Up & down layout.
- Select Auto, Portrait or Landscape output, merge, preview, and download.
Normal vs side-by-side vs up-and-down
Normal keeps one source page per output page. Side by side places two consecutive pages on one wider page. Up & down stacks two consecutive pages vertically. These layouts are useful for comparisons, paired forms, scans, handouts and before/after documents.
Privacy and large PDFs
Your selected PDFs are processed in the browser for this tool. For very large documents, Toolorix renders thumbnails in small batches to reduce memory pressure.
Why use Toolorix?
Private
Files are processed in your browser where stated on the tool.
Simple
Useful presets plus advanced settings when you need more control.
Free
No account is required for the core tools.