1) Upload & order
Drop PDFs here or click to browse
Accepted: PDF · Multi-file · Drag to reorder after upload
Browse PDFs
Tip: drag a row to reorder, or use Alt+↑ / Alt+↓ when a row is focused. The merge follows this order.
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2) Guardrails
Minimum files
2+
Recommended max total size
≤ 80 MB
Processing
Local
Large PDFs can be memory-heavy. If the tab freezes, retry with fewer files or smaller PDFs.
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Need a batch workflow?
v2 roadmap: queue jobs at the edge (Workers + Queues) and store outputs in R2 with expiring links.
Read architecture →