PDF, or Portable Document Format, was developed by Acrobat in order to enable people to edit and store digital documents. It is designed to work independently of any program or operating system. PDF files are text files that contain a description that describes a single page, such as text, fonts, images, and any additional information that is needed to properly format it. The modern PDF file has come about from the Camelot Project, an initiative that was started by Adobe co-founder John Warnock in 1991.
It is possible to create PDF documents that have text or graphics, but they can also be formatted to include a number of different kinds of information, such as a hierarchy of pages and sub-pages, and also include complex multimedia like video and 3D objects created with PRC or U3D.
PDF files are typically composed of images, text, and other graphic elements. Typed texts which are added to PDF documents as data streams (i.e., are embedded in PDF documents as opposed to being written directly into a file) and graphics that are added to PDF documents as data objects are examples of what is possible in a PDF. In later PDF revision, a document may contain links to external websites, forms, or any kind of dynamic content. Plugins can handle such features.
PDF combines the power of three different technologies: a software program that uses a programming language called PostScript to specify layout and graphics, and a structured storage system that bundles all of this and the accompanying information into a single file. A system that enables fonts that are embedded in documents to be used as they are, and storing files that contain a combination of the various elements in PDFs, preserving the data that is contained within.
PDF is a document whose content can no longer be edited. Sometimes you want to delete unused pages, here’s how to delete unnecessary pages in your PDF.
- Launch Acrobat Reader to see the PDF.
- From the right pane, select the Organize Pages tool.
- The Organize Pages toolset may be found on the secondary toolbar, and page thumbnails can be found in the Document area.
- To delete a page, select a thumbnail from the list and click the Delete icon.
- A confirmation dialog box appears. To confirm, click OK.
- Save the PDF file.
Preview on Mac
- To open the PDF in Preview, double-click it.
- Navigate to the View menu.
- On the menu, select Thumbnails.
- Choose the page(s) to be deleted. If you want to delete many pages, hold down the Command key.
- On the keyboard, press the Delete key. You can also click the Edit menu at the top of the screen and select Delete instead.
SmallPDF on the Web
- In a web browser, navigate to https://smallpdf.com/delete-pages-from-pdf.
- Click to open
- Hover your mouse pointer over a page you want to delete and click Open.
- On the page, click the trash can symbol.
- Click apply changes.
- To save the file, click Download.
If you want to delete multiple pages, then you only need to select the pages you want to delete simultaneously. Deleted pages cannot be restored, except with the help of software or online service providers. Make sure the page you delete is really a page you don’t need.