How to delete and reorder pages in a PDF

Drop the blank scans, move the appendix to the end, and save a document that reads in the right order.

Documents arrive in the wrong order more often than they should — pages scanned back to front, an appendix stuck in the middle, blank separator sheets from a feeder.

Step-by-step

1. Add your PDF. Every page appears as a thumbnail.
2. Delete what you do not want.
3. Drag the rest into order.
4. Save.

Check before you delete

Thumbnails are small, and a page with a faint signature or a light stamp can look blank at that size. Zoom in on anything you are about to remove — recovering it means starting again from the original.

Keep the original file until you have checked the output. That habit costs nothing and has saved a great many afternoons.

Reversing a back-to-front scan

Feeders sometimes produce a document in reverse. Reversing the whole order is far quicker than moving pages one at a time, and it is worth checking whether that is the actual problem before you begin dragging.

What is preserved

Pages are moved intact, so text stays selectable and quality is unchanged. Links pointing to specific pages may end up aimed at the wrong one, since the destination has moved — worth checking in a document with an internal table of contents.

What moving pages breaks

A PDF's internal links and its bookmark outline point at page objects, and well-built files survive reordering with both intact. Less careful ones do not: links generated by some exporters reference a page by its position, and once page 12 is no longer twelfth, every one of those references quietly aims at whatever is there now. Nothing errors, and the file opens perfectly.

So after any reorder on a document that had a table of contents, internal cross-references or a bookmark panel, the check worth doing is to click three or four of them rather than to look at the pages. A broken outline is invisible until somebody uses it, which is usually after you have sent the file.

A blank page is rarely blank

Scanned pages that look empty almost never are. There is speckle from the sensor, shadow along the gutter, bleed-through from the reverse, and often a faint stamp or a punch hole. That is why automatic blank-page detection works on a threshold and why the threshold is a guess: set it tight and it keeps pages that are visually empty, set it loose and it removes a page whose only content was a light pencil annotation.

The reliable method is the boring one. Look at the thumbnails, decide which pages go, and check the page count before and after against the number you meant to remove. Two pages removed when you selected one is the error that matters, and it is trivially visible in the count and nearly invisible in the document.

Frequently asked questions

Is the file uploaded?

No. The PDF is read and rewritten in your browser.

Will the text still be selectable?

Yes. Pages are moved rather than re-rendered, so text, quality and file size are unaffected.

Can I recover a page I deleted?

Not from the saved file. Keep the original until you have checked the result.