Percentage Calculator
Calculate percentages, changes, proportions and discounts with step-by-step working.
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Merge PDF
Combine multiple PDF documents into a single file in your chosen order — privately in your browser.
Your workspace
Processed in this browser
Drop PDF files here or click to browse
Select 2 or more PDF files. Reorder them or specify page ranges before merging.
Inputs are processed locally in your browser. No data is sent to external servers.
Fast, Private Browser-Based PDF Merging
Unlike cloud PDF mergers that upload your private contracts, bank statements or academic records to remote servers, MixOfAll merges your PDF files directly inside your browser memory using PDF-Lib.
Are my PDF files uploaded to any server?
No. Every PDF you add stays strictly on your device. Merging takes place locally in your browser tab.
Can I merge only specific pages from a PDF?
Yes! Each queued file includes a page range box (for example, "1-3, 5") so you can cherry-pick exact pages from each document.
How do I change the order of merged PDFs?
Use the ↑ and ↓ arrow buttons next to each file to arrange the exact sequence before clicking Merge & Download PDF.