Safari is the best way to see the sites on iPhone, iPad, and Mac. Safari Technology Preview gives you an early look at upcoming web technologies in macOS and iOS. Get the latest layout technologies, visual effects, developer tools, and more, so you can provide input on how they are implemented and deliver a best-in-class user experience on all Apple devices.
Convert image files to a variety of file types. Preview supports a large set of image file types, including JPEG, PNG, PSD, and TIFF. 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. To browse the Preview User Guide, click Table of Contents at the top of the page.
Preview the latest web technologies. Get a preview of the latest advances in Safari web technologies, including HTML, JavaScript, and CSS. Safari Technology Preview includes the most recent version of WebKit, the rendering engine that powers Safari.
Easy to update. You can update Safari Technology Preview right from the Mac App Store. Updates occur every few weeks and include the most recent version of WebKit.
Access powerful developer tools. Use the latest version of the powerful Web Inspector and Responsive Design Mode to modify, debug, and optimize your websites.
Provide feedback. Use Feedback Assistant to send feedback directly to Apple about issues and enhancement requests. Simply select Report an Issue from the Help menu in Safari Technology Preview.
Run side-by-side with Safari. Safari Technology Preview is a standalone app that works side-by-side with the current version of Safari, so you can continue to use and reference the current release.
Surf seamlessly with iCloud. Safari Technology Preview works with iCloud, so you can access your latest Safari Favorites, bookmarks, and Reading List.
Keep current. The WebKit blog keeps you up-to-date on the latest developments in HTML, JavaScript, and CSS.
Preview User Guide
Some PDFs are forms you can fill out and then print or send. If a form requires a signature, you can add your signature to any PDF.
- In the Preview app on your Mac, open the PDF form. Click a field in the form, then type your text. If you save the form (by choosing File Export), you can close it, open it later, and continue to fill it out. Create and use signatures.
- Preview is the vendor-supplied image viewer and PDF viewer of the macOS operating system. In addition to viewing and printing digital images and Portable Document Format (PDF) files, it can also edit these media types. It employs the Aqua graphical user interface, the Quartz graphics layer, and the ImageIO and Core Image frameworks.
Fill out a PDF form
In the Preview app on your Mac, open the PDF form.
Click a field in the form, then type your text.
Preview For Macbook Air
If you save the form (by choosing File > Export), you can close it, open it later, and continue to fill it out.
Create and use signatures
To sign PDFs, you can capture your signature using your trackpad, the built-in camera on your Mac, or iPhone or iPad.
Preview Mac For Windows
In the Preview app on your Mac, if the Markup toolbar isn’t showing, click the Show Markup Toolbar button , then click the Sign button .
Follow the onscreen instructions to create and save your signature.
Create a signature using your trackpad: Click Trackpad, click the text as prompted, sign your name on the trackpad using your finger, press any key, then click Done. If you don’t like the results, click Clear, then try again.
If your Mac has a Force Touch trackpad, you can press your finger more firmly on the trackpad to sign with a heavier, darker line.
Create a signature using your computer’s built-in camera: Click Camera. Hold your signature (on white paper) facing the camera so that your signature is level with the blue line in the window. When your signature appears in the window, click Done. If you don’t like the results, click Clear, then try again.
Create a signature using your iPhone or iPad: Click iPhone or iPad. On your iPhone or iPad, sign your name using your finger or Apple Pencil. When your signature appears in the window, click Done. If you don’t like the results, click Clear, then try again.
Add the signature to your PDF.
Choose the signature you want to use, drag it to where you want it, then use the handles to adjust the size.
Preview For Mac Tutorial
If you use iCloud Drive, your signatures are available on your other Mac computers that have iCloud Drive turned on.
Delete a saved signature
In the Preview app on your Mac, if the Markup toolbar isn’t showing, click the Show Markup Toolbar button .
Click the Sign button , then click the X to the right of the signature you want to delete.