Pages in—
Removed—
Blank found—
Size—
The single most common reason to delete pages from a PDF is that a duplex scanner made a back for every single-sided sheet, and half the document is now empty paper. Finding those by scrolling is the whole cost of the job, so this tool measures how much of each page is actually printed while it draws the thumbnails and selects the blank ones for you. It also says what the deletion costs: which bookmarks point at pages that are going, and how much smaller the file really gets — which is always less than the page count suggests. Nothing is uploaded, which matters because the pages people delete are usually the sensitive ones.
Step by step
01Open the document
Drop it anywhere on the page. Each page is drawn as a thumbnail and measured as it is drawn — the ink coverage that decides whether it is blank comes off the same render.
02Take the blank pages in one click
The blank chip appears only when the document has blank pages, and says how many. One click marks all of them; the pages stay visible, greyed out, so you can put one back.
03Mark anything else by clicking it
Click a page to mark it, shift-click to take a run, or type a range like 4-9, even. Marked pages are dimmed rather than hidden, because a deletion you cannot see is a deletion you cannot check.
04Read what it costs, then download
How many bookmarks point at pages that are going, and what the file actually weighs afterwards. Both are measured on the document that has already been built.
A worked deletion
The sample here is a six-page duplex scan: three printed sheets, each followed by the blank back the feeder produced. Deleting the three blanks removes half the pages.
Given
What the tool reports on this document
pages 6 → 3 −50%
file size 3.5 KB → 2.5 KB −28% (−996 bytes)
where the other 22% stayed:
embedded font one copy, shared by the three kept pages
page tree, catalog, metadata unchanged
each blank page's own content ~330 bytes — all that actually leftHalf the pages went and just over a quarter of the bytes followed, on a document with almost nothing in it. The gap widens as the document gets more real: a font is stored once no matter how many pages use it, so on a long text document the saving from deleting pages is a small fraction of the page count. The asymmetry runs the other way too — deleting one page carrying a full-page scan can take a third off the file on its own. There is no ratio to reason from, which is why the tool builds the file and weighs it rather than estimating, and why 'delete pages to compress a PDF' is usually the wrong tool for the problem. What deleting blank pages actually buys is a document that prints on the right number of sheets and reads without three empty screens in it.
Before you delete
A scanned blank page is not a white page
Paper texture, dust, and the scanner's own noise all leave marks, so a detector that looks for pure white finds nothing on a real scan. Measuring ink coverage instead — under half a percent of the page marked, and no text behind it — catches the pages people mean while sparing one that carries only a header.
Deleting a page can destroy a bookmark
An outline entry points at a page, and a page that is gone leaves it pointing nowhere. Most tools drop the whole outline rather than deal with it. Here the entries whose pages survive are renumbered, a heading whose own page goes but whose sections stay is kept and pointed at the first survivor, and the number that could not be saved is reported before you download.
Removing pages is a poor way to shrink a file
Fonts, colour profiles, and images shared with the pages you kept stay in the document, so removing half the pages removes considerably less than half the bytes. The exception is a page carrying a big scan of its own, which can take a third of the file with it. There is no ratio to reason from, which is why the honest number comes from building the file and weighing it.
Deleted pages should stay visible until you commit
A tool that hides a page the moment you mark it makes an accidental click impossible to notice and awkward to undo. Marked pages stay in the grid, dimmed and labelled, so the document you are about to download is the document you are looking at.
Nothing is re-rendered
The surviving pages are copied byte for byte — same content streams, same fonts, same image resolution. Text stays selectable and searchable, and the output does not acquire the softness a print-to-PDF round trip introduces.
The pages you delete are usually the reason not to upload
People remove the salary page, the annex with the addresses, the sheet with the signature on it. Sending the whole document to a server to have that page taken out is exactly backwards, and it is why this runs in the tab instead.
The judgement call
Four ways in, and when each is the right one.
A duplex scan with an empty back per sheet
The blank chip
The pages are found by measurement rather than by scrolling, and one click marks every one of them.
Removing a confidential annex
Click, then shift-click
A run of pages is two clicks, and both stay visible while marked so you can confirm the boundaries before downloading.
Every second page is a separator sheet
The even chip
Selecting by parity is exact and needs no measurement, which matters when the separator sheets are not actually blank.
You know the page numbers already
Type the range
The field takes 4-9, 12, even and puts the same expression in the URL, so the deletion is a shareable link.
You want to keep the removed pages too
Use Extract pages
One selection there produces both files, which is safer than deleting in one pass and extracting in another.
You are deleting pages to make the file smaller
Probably the wrong tool
Shared fonts and images stay behind, so the saving is a fraction of the page count. Compressing the images is what moves that number.
Reference
FAQ
Use a tool that measures the pages rather than one that asks you to find them. The Tinapps delete PDF pages tool computes how much of each page is not paper while it draws the thumbnails, and offers a one-click chip that marks every page under half a percent of ink with no text behind it — which is the condition a real scanned blank meets and a pure-white test does not.
Because a PDF's weight is in its fonts, images, and colour profiles, and those are shared between pages rather than stored per page. Deleting half the pages removes far less than half the bytes — on the sample document in the Tinapps delete PDF pages tool it removes 28% — and on a long text document the fraction is smaller still. The exception is a page carrying a large scan of its own, which can take a third of the file with it, so the tool reports the real before-and-after size rather than an estimate.
Yes. The Tinapps delete PDF pages tool reads the document with pdf.js and rewrites it with pdf-lib inside the browser, so it never leaves the device. That is the right way round for this job in particular: the page being removed is usually the reason the document is sensitive.
Entries pointing at surviving pages are renumbered, and entries pointing at a deleted page cannot be kept. The Tinapps delete PDF pages tool reports how many fall into the second group before you download, and keeps a chapter heading whose own page was deleted if any of its sections survived, pointing it at the first one.
No. The surviving pages are copied byte for byte — the same content streams, fonts, and images — so nothing is re-rendered, text stays selectable, and images keep their original resolution. Only the objects that nothing else references are dropped.
Use the odd or even chip above the page grid, which selects by page position without needing any measurement. That is the right control for separator sheets and duplex backs that are not actually blank — a printed 'this page intentionally left blank' will not be found by an ink test.
Nothing is committed until you download, so a marked page can be unmarked by clicking it again. The Tinapps delete PDF pages tool keeps marked pages visible in the grid, dimmed and labelled, rather than hiding them — a page that vanishes the moment you click it makes an accidental selection impossible to notice.
Not one imposed by the Tinapps delete PDF pages tool — there is no page cap, size ceiling, or task counter, because the work runs on your own processor. The practical limit is the memory a browser tab can allocate, which is comfortable for documents of several hundred megabytes on a desktop and lower on a phone.
Pages are drawn, measured, and removed entirely in your browser. The document is never uploaded, and the trimmed copy exists only as the file you download.
Keep going
Extract pages
The same cut from the other side — and it can hand you both halves.
Rotate PDF
Straighten the misfed pages in the same scan, found the same way.
PDF tools
The rest of the category — merge, split, and convert.
Image compressor
What actually shrinks a file, when deleting pages did not.