Review the document visually
Each card shows the actual source page. Its original page number stays attached as you move it; its position tells you where it will appear in the output. Open a larger preview to read details. Earlier/Later and First/Last buttons support keyboard and touch; 20 thumbnails are displayed at a time, and movement can cross groups. Undo restores the last ordering change, including Restore original order.
Privacy and output
Previews and PDF processing run locally. Your document is never uploaded. Thumbnails are reduced previews; the downloaded PDF copies the original page content without turning it into pictures. Invalid replacement files leave the accepted document, order and available download intact. Cancel preserves that accepted state; Clear PDF removes it. File/preview operations have a 60-second deadline; worker inspection and export each have 30 seconds. Page sizes and existing display rotations are preserved. Your original file stays unchanged.
Every page appears exactly once. Encrypted, signed and interactive-form PDFs are unsupported. Bookmarks, metadata, attachments and other document-level features may not transfer. Keep the original and review the downloaded document.