best solution to remove blurred text

Is that the only available image of that book? Are you the owner of the original file which is probably a much higher resolution scan, or even a vector PDF with real type? Those would all be much better than this low resolution image.

If you must work with the low quality of the image you attached, there are many options, but none of them as good as having access to a much higher resolution original.

Photoshop now has almost too many upscale/sharpening options to count, definitely more than any beginner can keep track of. I tried your image with six of the latest range of options in Photoshop 2026. You can run your own tests and decide which one you think is best. 

This is what the filename means in each document tab in the picture below, including which Photoshop 2026 feature was used:

testpage.jpg – This is the un-edited book page image that you uploaded.

Smart Sharpen – Processed using Filter > Sharpen > Smart Sharpen.

GU Firefly Upscaler 4x scale — Processed using Image > Generative Upscale, Adobe Firefly model, Scale 4x.

GU Topaz Gigalpixel 4x scale — Processed using Image > Generative Upscale, Topaz Gigapixel model, Scale 4x. This model may have some understanding of type, because it does so much better than the others. Most upscale methods are optimized for images, not type.

AI Sharpen — Processed used Filter > AI Sharpen.

Camera Raw Filter Effects, Sharpening — Processed using Filter > Camera Raw Filter, using the Detail panel Sharpening options and the Effects panel Clarity/Texture options a little. That seemed to make it a little heavier, so the image was also slightly lightened.

Again, there are now so many ways to do this in Photoshop and Camera Raw that I didn’t even try them all. I didn’t try Filter > Sharpen > Unsharp Mask because it is so basic and old, and I didn’t try the traditional Image > Image Size options for Resample (such as the Preserve Details options) because I assumed the new generative AI upscaling options might be better. But feel free to try them all, and inspect them magnified.