Advanced Processing tab

Use the Advanced Processing tab to access controls and settings that extend PDF functionality.

To find tools on tabs, see "Ribbon, tabs and panels" or use the search box in the Help menu.

Process tools

Flatten File icon Flatten File: Transform annotations into document objects, remove or merge layers, and make other changes as detailed in Flatten Document.

Index icon Index: Create full text indexes for a set of PDF files. You can also Embed an existing index into the current document.

Reduce icon Reduce: Reduce one or more files by balancing image quality and file size.

Split icon Split: Split the current document based on the specified criteria.

Read Aloud tools

Current Page icon Read This Page: Read all text content on the current page using the speech service of macOS.

To End icon Read To End: Read from the start of the current page to the end of the document.

To End icon Pause: Active only during read-aloud. Click to stop the playback momentarily, then click again to resume.

Rate Up icon Rate Up: Click to speed up the reading.

Rate Down icon Rate Down: Click to slow down the reading.

Go to System Preferences > Accessibility > Spoken Content to set preferences for the reading voice, speed, language and more.

Make searchable tool

Make PDF Searchable icon Make Searchable: Transforms Image-only PDF files or files with image-only parts containing scanned text to a searchable PDF. It does this by running OCR (Optical Character Recognition) on the image-only parts to create or supplement the document's text layer. Click the tool, then select a command from the drop down:

Current File: Runs OCR on the active document only. See "Turn a PDF with image-only parts to searchable in Power PDF" for details.
Multiple Files: In the OCR Text Recognition dialog box, add files or folders to the list. Click Settings to adjust PDF type, language and other options. Click OK to start to process the file list.