Reordering a PDF by typing page numbers is awful. You can't remember which page is which. You scroll, you click, you scroll back. There's a better way.
Thumbnails. Big ones. You see every page at once. Flint is built around this.
Why thumbnails win for reordering
You're trying to put pages in order based on content, not number. Content lives on the page. Thumbnails show content. Numbers are just labels. The fastest reorder workflow is: identify pages visually, drag them where they go. Anything else (typed positions, range-based moves) is a fallback for when thumbnails aren't enough.
Flint's grid
Open reorder PDF, drop the file, every page appears as a thumbnail. Big enough to read headings. Small enough that 30-40 pages fit on screen at once. Scroll for longer documents. The grid stays responsive even for very large files.
Drag operations
Drag one thumbnail to move one page. Shift-click for ranges, drag the range. Cmd/Ctrl-click for non-contiguous selection. Drag thumbnails between distant positions; the grid auto-scrolls when you drag near the top or bottom edge.
Save the new order
Click save. The reordered PDF downloads. Bookmarks remap, internal links remap, no content is re-rendered. The original file on your disk is unchanged.
FAQ
What does the thumbnail show?
The full page rendered small — text, images, layout, everything visible at a glance.
Can I zoom into a thumbnail?
Hover or click to preview at larger size. Some pages need it; most don't.
Maximum documents per grid?
Hundreds of pages. Browser memory is the practical ceiling.
What about pages that look identical?
Hover for full preview. Or rely on adjacency: if you know page 47 was right after page 46, find page 46 and the next one is your target.
See, drag, save. Reorder visually.