The signature tool in Preview.

Fill out and sign forms—no printer needed

You can use Preview to fill out PDF forms and even add a signature. With enhanced AutoFill, you can fill in your information with a click.

How to fill out PDF forms

The “Optimize images for screen” option in Preview.

Compress documents

You can reduce the size of a large PDF to save storage space.

How to compress a PDF

A password-protected PDF.

Protect your confidential documents

If a PDF contains sensitive information, you can keep it secure by adding a password.

How to password-protect a PDF

The Export options in Preview.

Convert image files to a variety of file types

Preview supports many types of image files. When you receive a photo that you can’t open in your photo editing app, you may be able to convert it to a file type you can use.

How to convert graphics file types

A page thumbnail is dragged from the sidebar of one PDF to the sidebar of another.

Combine PDF documents

Easily combine PDF documents and transfer pages from one PDF to another.

How to combine PDFs

To explore the Preview User Guide, click Table of Contents at the top of the page, or enter a word or phrase in the search field.

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