How to Write on a JPEG Image on Mac

When it comes to compressing photos without losing their quality, the Preview app on your Mac is an excellent tool. However, if you're looking for ways to shrink a JPEG file size without compromising its resolution, there are several methods you can use.

One way to do this is by changing the dimensions and resolution of the image. This method is simple and effective, but it may not be suitable for all situations. For example, if you plan to print or enlarge the photo later, you'll need to compress it in a different way that won't affect its resolution.

Another method is to reduce the quality of the JPEG file. This can be done by adjusting the 'Quality' option when exporting the image. However, this will result in a loss of image quality, which may not be desirable for most users.

Lossless Compression

If you want to compress your JPEG files without losing any data, you can use lossless compression methods. These methods reduce the file size by removing unnecessary data, but they don't affect the image's resolution or quality.

One way to achieve this is by using the Preview app on your Mac. To do this, follow these steps:

1. Export your JPEG file as a TIFF file.

2. Open the TIFF file in Preview and go to 'File' > 'Export'.

3. Select 'JPEG' from the compression menu.

4. Export the image as a TIFF file by selecting 'TIFF' from the format dropdown menu.

5. Locate the image you want to resize, then double-click to open it in Preview.

Reducing Photo Size Using Preview

Another way to reduce photo size using Preview is by adjusting its dimensions and resolution. To do this:

1. Enter a filename for your image and click 'Save'.

2. Select 'File' > 'Save As' to create a new copy of your JPEG.

3. Check the 'Resulting Size' section to make sure the new image size is right for your needs.

4. Adjust the Width, Height, and Resolution, then click 'OK'.

5. Choose 'Percent' or 'Size' as an adjustment value.

In conclusion, there are several ways to shrink JPEG file sizes on Mac without losing quality. By using lossless compression methods and adjusting the dimensions and resolution of your images, you can achieve a smaller file size while retaining the image's quality.

How to write on a jpeg image on mac