You can figure out what the options do by playing with them. It doesn’t matter if you’re not sure what the options do - the image will update in the background as you adjust these sliders, so you can see a preview of your color adjustments in real time. It’s useful for everything from fixing the color levels of an image to applying that old-timey sepia filter Instagram made trendy. Many websites have strict rules that limit the size and type of image format you’re allowed to upload. On Mac, open the image in Preview and go to File > Export to save the image as a JPG. The pane includes an overall color level graph you can modify as well as sliders for adjusting exposure, contrast, highlights, shadows, saturation, temperature, tint, sepia, and sharpness. To convert an image to JPG on Windows, open the image in Paint or IrfanView and navigate to File > Save As to save the image as a JPG. Use the options on the pane that appears to adjust various color settings. The built-in Preview application also has a tool for adjusting the color levels or gamma of an image. RELATED: Use Your Mac’s QuickTime App to Edit Video and Audio Files /rebates/&.com252fmac252fhow-to-crop-a-picture-on-mac. You can then click somewhere in the image to add text, draw a line, highlight an area, create a shape, or insert an arrow - whichever tool you’ve selected. Select a tool and it will replace the default “rectangular selection” tool. You can also click the Tools menu, point to Annotate, and select one of these tools in the menu. Preview includes various image mark-up tools - the same ones that work in PDFs - which you can access by clicking the Show Markup Toolbar button near the top-right corner of the window. Upload your photo to the crop tool and select the desired cropping area by dragging the handles.

How to crop jpg on mac