43 lines
1.8 KiB
Markdown
43 lines
1.8 KiB
Markdown
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---
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title: Alternate & Mix Pages
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description: Merge PDFs by interleaving pages from each file in alternating order, with bookmark preservation.
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---
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# Alternate & Mix Pages
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Interleave pages from multiple PDF files so that pages alternate between documents. This is the tool you reach for when a standard merge would just append files end-to-end but you need page 1 of File A, then page 1 of File B, then page 2 of File A, and so on.
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## How It Works
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1. Upload at least two PDF files using the drop zone.
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2. The tool displays each file with its page count and file size.
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3. Drag the grip handles to reorder which file's pages come first in the interleaving sequence.
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4. Click **Mix Pages** to produce the interleaved output.
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5. The result downloads as `alternated-mixed.pdf`.
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## Features
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- Interleaves pages across any number of PDFs (minimum two)
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- Drag-and-drop reordering of files to control interleaving priority
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- Preserves bookmarks from the source documents
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- Displays page count and file size for each uploaded file
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- Processes via a dedicated web worker for responsive UI
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## Use Cases
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- Reassembling double-sided scans where odd and even pages were scanned separately
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- Combining question sheets with answer keys so each question is followed by its answer
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- Merging two-language documents page by page (e.g., English on one side, translation on the next)
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- Interleaving front and back scans from a single-sided scanner
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## Tips
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- If your source PDFs have different page counts, the shorter document's pages will run out first and remaining pages from the longer document will appear at the end.
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- The file order matters -- the first file in the list contributes the first page of the output. Drag to rearrange if needed.
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## Related Tools
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- [Merge PDF](./merge-pdf)
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- [Organize & Duplicate](./organize-pdf)
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- [Split PDF](./split-pdf)
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