When to delete pages
- Clean up scans — drop blank backs of single-sided documents.
- Remove sensitive pages — leave out pages you don’t want to share.
- Trim size — remove covers, adverts or appendices before sending.
How it works
The pages you list are removed and every other page is copied, in its original order, into a new PDF. Because content is copied rather than re-rendered, the result looks exactly like the original.
What is a PDF file?
PDF (Portable Document Format) was created by Adobe and is now an open ISO standard (ISO 32000). A PDF fixes the exact layout of every page — fonts, images and positions — so a document looks the same on every screen and printer. That makes it the standard for contracts, invoices, manuals, papers and forms.
Inside, a PDF stores each page as drawing instructions. Text written by a program is stored as real characters (a “text layer”) and can be selected and extracted. Scanned documents usually store only a picture of each page, so their text cannot be extracted without OCR.