Remove specific pages from a multi-page PDF on iPhone and save the result as one slimmed file. Pick pages in a thumbnail grid, confirm, export. This is the delete-pages flow — if you instead want to break a PDF into multiple separate files, see split PDF on iPhone.
On iPhone you delete pages from a PDF by switching the viewer into thumbnail-grid mode, tapping each page you want to drop, and confirming the delete. The result is one slimmed PDF — same file structure as the original, with the chosen pages removed and the remaining pages renumbered in physical order. ScanLens centralises this in a single export: open the PDF, tap the thumbnail icon, tap the pages you want gone, confirm, preview, save.
iOS itself can do this — Files app exposes a hidden page-delete inside the markup tool — but the workflow is awkward: long-press a thumbnail, find the delete option behind a menu, repeat. ScanLens uses a grid with multi-tap selection, range support for consecutive pages, and a preview screen before commit so you can confirm the slimmed PDF looks right before exporting.
Delete pages takes a multi-page PDF and removes specific pages, leaving you with one PDF that has fewer pages. A 10-page PDF with pages 3 and 7 removed becomes one 8-page PDF. This is the right tool when you want to slim a document, drop blank or duplicate pages, or remove a section before sharing.
Split PDF takes a multi-page PDF and produces multiple separate PDFs from page ranges. A 20-page PDF split at pages 5, 10, and 15 becomes four PDFs (1–5, 6–10, 11–15, 16–20). This is the right tool when you want to separate chapters, isolate individual receipts from a batch scan, or send different sections of a document to different recipients. If that's what you need, head to split PDF on iPhone instead.
One quick test: how many files do you want at the end? If the answer is one, you want delete pages. If the answer is more than one, you want split.
The PDF opens in a scrollable grid of page thumbnails — small enough to see twelve pages at a glance on iPhone, large enough to recognise which one is the cover, which is the blank, which is the signature page. Tap a thumbnail to mark it for deletion; a coloured outline confirms the selection. Tap again to unmark.
Need to drop pages 3 through 7? Tap page 3, tap "Select range," tap page 7 — the five pages between are marked in one motion. Useful for trimming a long lecture PDF to just the lecture-day pages, or chopping the table-of-contents and index off a downloaded ebook before annotating the body.
After selecting, a preview screen shows the slimmed PDF as it will export — pages renumbered, blank pages gone, the new total at the top. Scroll through to confirm before tapping save. If something looks wrong, back out and re-select; nothing is committed until you tap export.
The exported file is a freshly rendered PDF — pages are physically renumbered 1 through N in the new order. If you removed pages 3 and 7 from a 10-page document, the export has pages 1 through 8. Page numbers printed inside the document content (a footer like "page 4 of 10") stay as they were — those are part of each page's rendered image, not editable metadata.
The whole flow from opening the PDF to having a slimmed export saved alongside the original takes under a minute for a typical document. Six steps, no app switching, original file preserved.
| Step | Action | Tips |
|---|---|---|
| 1 | Open the PDF in ScanLens | From the library, Files app, Mail attachment, or AirDrop |
| 2 | Tap the thumbnail grid icon | Top toolbar — switches from single-page view to a scrollable grid |
| 3 | Tap pages you want to delete | Selected pages get a coloured outline; tap again to unselect |
| 4 | Confirm the deletion set | The counter shows N pages selected and a delete button appears |
| 5 | Preview the slimmed PDF | Scroll through the new layout to verify before committing |
| 6 | Export as a new file | Saves alongside the original; the source PDF stays untouched |
Multi-page scanners — yours or a library's — sometimes pull a blank sheet through or scan the back of a single-sided page. The result is a PDF with empty pages between the real content. Open the file, switch to grid, tap the blanks, export. The new PDF reads cleanly when emailed to a recipient.
A signed contract draft often gets revised. Before sending the next version to the other party, you want the signature page out — they shouldn't see your old signature on a draft they're still editing. Delete that page, send the rest, re-sign once the final version is locked.
A 200-page semester reader holds 14 weeks of material. Today is week 3. Switch to grid, range-select pages 1–34 and 53–200, delete, export the 18-page week-3 PDF for your tablet. Lighter file, faster annotation, no scrolling past last week's material.
Faxes and forwarded emails accumulate cover sheets, routing pages, "this fax is X pages including this cover," and ad inserts. The actual document is buried in the middle. Drop the chaff, keep the substance, export a clean PDF for your records.
Phone-based scanners occasionally double-capture a page — you turn too slowly, the camera triggers twice. The PDF ends up with the same page appearing twice in a row. Grid view makes the duplicate obvious; tap the second instance, export, done. Easier than re-scanning from scratch.
Yes — your original PDF stays in the ScanLens library unchanged. Deleting pages creates a brand-new exported file with the chosen pages removed; the source file is not touched unless you delete it yourself. If you removed the wrong pages, open the original again and re-export with a different selection.
Yes. In thumbnail grid view, tap any page to toggle it in or out of the deletion set. The taps don't have to be sequential — you can mark page 3, then page 7, then page 12, then confirm the whole batch in one export. A range selector lets you grab consecutive pages (e.g. 5–9) in two taps if you do need a block.
Only after you unlock the PDF with the correct password. ScanLens is not a password cracker — when you open a protected file, iOS prompts for the password just like any standard PDF viewer. Once unlocked, page deletion works normally. The exported slimmed PDF is unprotected by default; re-apply encryption from the password protect flow if needed.
Yes. The new PDF is renumbered from 1. If you remove pages 3 and 7 from a 10-page document, the export has pages 1 through 8 in physical order. Any printed page numbers inside the original layout (e.g. a footer that reads "page 4 of 10") won't update — those are part of the rendered image of each page, not metadata. The visible numbering inside the document content stays as it was.
No. ScanLens treats the operation as an export: the source PDF stays in your library, and the slimmed version is saved as a new file alongside it. You can keep both, replace the original with the new export, or delete the original — your choice. Nothing happens silently in the background.
No. The exported PDF is freshly re-rendered with only the pages you kept — there's no leftover data, no invisible layers, and no metadata pointing back to the removed content. This matters when you're trimming a contract draft before sending or removing internal notes from a forwarded document. The data is genuinely gone in the export.