Select Quick Actions | Convert Image from the context menu that has appeared.

More than one: This conversion also works with multiple images selected, of course each highlighted image will be converted individually.

Click on the image with the right mouse button in Finder.

To convert an image on a Mac right in Finder (and without even opening Preview): How to Convert an Image in Mac Finder (Using Quick Actions) Storage of high-quality pictures and graphicsĪlpha: see above Depth: How many different shades of each colorare possibleĪlpha: see above Create PDF/A: a format with few dependencies for archiving Create Linearized PDF: Makes it possible to show the PDF as it is downloaded or streamed for longer documentsĪlpha: see above Compression: How much the image is compressed LZW, ZIP, and PackBits are lossless, JPEG uses JPEG compression Pictures, no numbers and letters, for sharing Preview on a Mac lets you convert to the following image formats: Image format How to Convert an Image on a Mac (Using Preview): Formats and Options

Option: Change the file name and folder under Export As: and the folder browser.

More options: Some image formats come with special options see below. Compression: For some formats (namely TIFF), you can pick the compression algorithm ZIP is typically a good choice. Alpha: If the original image has translucency, you can keep the alpha channel that encodes that in the converted image. Resolution: Pick the image resolution for conversion in pixels per inch or centimeter (e.g., at least 300 dpi for printing and some 96 dpi for classic displays). Quality: For lossy image formats, pick the tradeoff between compression and quality. Which to pick: See below for an overview of image formats.

Select the image format for the conversion under Format.

PDF: You need not choose Export as PDF… to convert an image to PDF. Here’s how: Click the image in Finder with the right mouse button and select Open With | Preview from the context menu that has appeared.

Open the image you want to convert in Preview.

To convert pictures and graphics between many image formats using macOS Preview on a Mac (to JPEG, PNG, GIF, PDF, HEIF, and more):

How to convert a file to jpeg on mac