PDF Page Reorder

The PDF Reorder tool provides a visual drag-and-drop interface for rearranging PDF pages. See all pages as thumbnails, drag them into the order you want, remove unwanted pages, duplicate pages if needed, and download the reordered PDF. This is much faster than opening a PDF in Acrobat or going through separate split and merge operations.

Upload your PDF, interact with thumbnails to reorganize: drag to reorder, click to delete, right-click to duplicate. Keyboard shortcuts speed up common actions. Preview the new order before finalizing. All processing runs in your browser using pdf-lib so sensitive documents stay local. Output PDF has identical quality to input — only the page order changes.

PDF reordering uses pdf-lib page manipulation API:

1. Parse source PDF into document model
2. Extract pages as independent page objects
3. Build new document with pages in chosen order
4. Copy each page (preserves all content: text, images, forms)
5. Save resulting PDF

Visual interface: thumbnails generated by rendering each page via PDF.js. Thumbnail size configurable (smaller = more pages visible, larger = more detail). HTML5 drag-and-drop for reordering, click handlers for delete/duplicate.

Operations supported:
- Drag to reorder: click and drag thumbnail to new position
- Delete: remove a page from the final output
- Duplicate: insert a copy of a page at the end (or specific position)
- Move up/down: keyboard arrows move selected page
- Select multiple: shift+click to select range for bulk operations

Preview: before saving, see the new page order as a numbered thumbnail sequence. Verify before committing to download.

Metadata preservation: document metadata (title, author, creation date) copied to output. Individual page bookmarks may not survive reordering as they\u2019re typically tied to page positions.

Forms and annotations: preserved on pages that remain. If a form spans multiple pages, reordering may break form logic (JavaScript references to specific pages).

File size: output size roughly matches input. Adding duplicate pages increases size proportionally. Removing pages decreases proportionally, minus shared resources (fonts, images used elsewhere).

Performance: reordering is computationally cheap (just rearranging pointers). The expensive operation is rendering thumbnails, which takes time proportional to page count. 100-page PDF: thumbnails in ~5-10 seconds. Reorder and save: nearly instant after thumbnails load.

Password protected PDFs: need password to modify.

Compared to Adobe Acrobat page navigator, this tool is free and browser-based. Acrobat offers more advanced operations; this tool handles common reordering simply.

Compared to splitting and merging operations, this tool is faster for pure reordering. Split-merge would take multiple steps; this tool\u2019s drag-and-drop does it in one.

Compared to command-line tools (pdftk), this tool is visual and interactive. CLI is better for scripting; this tool for manual work.