Delete pages from PDF
Remove unwanted pages from your PDF. Click pages to mark for deletion. Files are processed in your browser — they never leave your device.
Delete pages from PDF removes the pages you mark in the thumbnail grid and saves a new PDF containing only the pages you kept. It runs entirely in your browser using pdf-lib via a Web Worker — your file is never uploaded. Click a thumbnail to mark a page for deletion (red strike-through), use the helper chips (Even, Odd, Invert) for quick selections, then click Delete N pages & download. The result is lossless: kept pages are copied bit-for-bit, fonts and images preserved, file size shrinks proportionally.
What is "Delete pages from PDF"?
Deleting pages from a PDF means producing a new PDF that omits the pages you don't want, while leaving the original file on your disk completely untouched. The most common use cases are removing blank back-pages from duplex scans, stripping personal-info cover sheets before sharing a document, trimming irrelevant chapters out of study material, or cleaning up form responses before forwarding them to a client.
Most online "delete pages" tools require uploading your file to a remote server, which is awkward when the document is a contract, a bank statement, or anything else you'd rather not hand to a third party. This tool runs the whole operation inside your browser — your file is read into memory, the kept pages are copied into a fresh PDF, and the result is offered back as a download. Nothing crosses the network.
How does the in-browser deletion work?
Pikowl loads your PDF into a Web Worker — a background thread inside your browser. The worker uses pdf-lib to copy only the kept pages into a new PDFDocument. Each kept page is copied with its full content stream — vector text, fonts, embedded images — so quality is preserved exactly. The deleted pages are simply not referenced in the new file, so the output PDF shrinks by roughly their share of the original byte size. Page thumbnails on the grid are rendered by pdf.js in its own dedicated worker so the page stays responsive even with hundreds of pages. The original PDF on your disk is never modified — Pikowl only reads it.
Is this the same as "Extract pages"?
It's the same operation viewed from the opposite angle. "Delete pages" asks you to mark the pages you don't want; "Extract pages" asks you to pick the pages you do want. The result is identical — a new PDF with only the kept pages — but the mental model is different. Use Delete pages when most of the document is good and you want to cull a few problem pages (e.g. removing a couple of blank scans). Use Extract pages from Split PDF when most of the document is irrelevant and you want to pull out a small section (e.g. extracting pages 3 to 5 from a 200-page report). Picking the angle that involves fewer clicks saves time and reduces mistakes.
When would I use this?
The most common cases are: removing blank back-pages from duplex (two-sided) scans, stripping a confidential cover sheet from a document before sharing it externally, deleting ad pages bundled with utility-bill PDFs, removing draft or revision-history pages from a versioned document, trimming form-response PDFs down to just the signed pages, and cleaning multi-day register reports down to the day you actually need. The pattern is always the same: mostly-good document with a few specific pages you want gone.
Will this remove sensitive data from the deleted pages?
For most purposes, yes — but not for high-security redaction. When pdf-lib writes the new PDF, the deleted pages are not referenced anywhere in the output: there is no "hidden" page that an attacker can recover from the saved file. However, true cryptographic redaction also requires securely overwriting the bytes in memory and on disk during the operation, removing the page's resources from any shared font / image dictionaries, and stripping the document's XMP metadata. Pikowl does the first part (no leaked references in the output) but does not do the latter two — for those use a dedicated redaction tool. As a rule of thumb: this tool is safe for removing personal-info cover sheets you'll share with colleagues; it's not the right tool for documents you'll publish to the internet under FOIA.
What are the limits and why?
Up to 100 MB per file and 500 pages per file — same as our other PDF editing tools. The 500-page cap exists because the on-screen thumbnail grid (rendered by pdf.js) becomes hard to scan visually beyond it, and on mobile devices the cumulative thumbnail rendering can stutter. The pdf-lib copy itself can comfortably handle thousands of pages. You also can't delete every page: a zero-page PDF doesn't open in any reader, so the action button disables when all pages are marked. For larger PDFs, split the document into 500-page chunks first using Split PDF, edit each chunk, then merge the results back with Merge PDF.
How does Pikowl compare to Smallpdf and iLovePDF?
Both Smallpdf and iLovePDF offer page deletion, but they upload your file to their servers and neither shows a side-by-side "Removed / Kept" receipt at the end so you can verify the operation before downloading. Numbers below reflect the public free-tier offers as of April 2026.
| Feature | Pikowl | Smallpdf | iLovePDF |
|---|---|---|---|
| Where files are processed | Your browser | Remote server | Remote server |
| Sign-up required | No | Optional | Optional |
| Removed / Kept receipt | Two-tag side-by-side | No | No |
| Max file size (free) | 100 MB | 5 MB | 200 MB |
| Price | Free | $9/mo for unlimited | $7/mo for premium |
Sources: smallpdf.com/pricing and ilovepdf.com/pricing, retrieved April 2026.
Common Uses
- Confidential cover sheets: Strip the cover page off a contract before forwarding it to a vendor — keep your routing slip and signature blocks private.
- Blank back-pages from duplex scans: Document feeders often scan the blank reverse side of every sheet — use the Even chip to mark and delete them all in two clicks.
- Ad pages in utility / bank statements: Strip out the marketing inserts before saving the statement to your records folder.
- Trim study material: Cull irrelevant chapters from a textbook scan so your tablet only holds the pages you'll actually read.
- Form-response cleanup: Strip blank or skipped form pages before forwarding the responses to a client or stakeholder.
- Versioned-document hygiene: Remove draft pages, revision histories, or reviewer-comment pages before publishing the final document.
FAQ
Can I undo a deletion after downloading?
Yes — your original PDF is never modified by this tool. We only read it from your disk, copy the kept pages into a brand-new PDF, and offer that new file as a download. The original sits exactly where it was. If you delete the wrong page, just open the original again, mark a different selection, and re-download. We strongly recommend keeping the original until you've verified the trimmed version opens correctly and contains everything you expected.
What if I want to keep specific pages instead?
Use Extract pages from our Split PDF tool. It's the same underlying operation viewed from the opposite angle — instead of marking pages to remove, you click pages to include. Use Extract when you want a small slice of a large document (faster: fewer clicks) and Delete when you want most of the document minus a few pages (also faster: fewer clicks).
Why can't I delete every page?
Because a zero-page PDF doesn't open in any PDF reader — Adobe Acrobat, Apple Preview, Chrome's built-in viewer, and Firefox's pdf.js all reject empty files. The PDF specification requires at least one page in a valid document. When you mark all pages, the action button disables and shows "Cannot delete every page" — unmark at least one page to proceed. If you want a totally blank PDF, search for a "blank PDF generator" instead; it's a different tool.
Will this remove sensitive data from the deleted pages?
It will keep that data out of the new PDF you download — there is no "hidden" deleted page in the output that someone could recover. However, this tool is not a secure-redaction tool: it doesn't strip the document's XMP metadata, doesn't remove embedded fonts that were only used by the deleted pages, and doesn't securely overwrite memory during the operation. For documents you'll publish to the internet (e.g. court filings or FOIA responses), use a dedicated redaction tool that's been certified for that purpose. For removing a confidential page before sharing with a colleague over email, this tool is fine.
Will the kept pages lose any quality?
No. Pages are copied bit-for-bit from the source PDF — the same fonts, vector data, embedded images, and page geometry are preserved. There is no re-rendering or re-encoding. The output file's size is roughly proportional to the size of the kept pages in the original (if you delete 30% of the pages, expect the output to be about 30% smaller).
Is my PDF uploaded to a server?
No. The deletion runs entirely in your browser — open the network tab in DevTools while you use the tool and you'll see no outbound requests during the operation. The PDF is read from your disk via the File API, processed in a Web Worker using pdf-lib, and offered back as a download. Nothing leaves your device.
Can I delete pages from password-protected PDFs?
Not directly. If the PDF is encrypted, the tool will report the failure and stop. Remove the password first using your PDF reader (most desktop readers can re-save without password) and then come back. We don't accept the password into the browser because storing it even briefly would weaken the privacy guarantee — your file never leaves your device, and your password shouldn't either.
By the Numbers
- ~50 MB threshold: Browsers can comfortably hold a 50 MB PDF in memory while editing — the 100 MB ceiling is twice that, with headroom for the new copy.
- Lossless copy: pdf-lib's
copyPagespreserves the source page's content stream byte-for-byte — no resampling, no font re-embedding, no image re-encoding. - 200-page benchmark: Removing 50 pages from a 200-page PDF takes under a second on a 2020 mid-range laptop, all in the browser via pdf-lib in a Web Worker.