<html><body><div>There are special workflows to clean low quality BW or greyscale images, used originally to clean fax messages.<br> <br>Principle is to use in bitmap editor combination of setup of layers and Gaussian blur. One or two times. And as last step a sharping. It works better if you increase resolution up to 600-1200 dpi first.</div><div><br></div><div>I attached sample after and original and several screenshots. I'm sorry I don't have English Photoshop but it should be clear any way.</div><div><br></div><div>m.s.</div><div><br></div><div>Result:</div><div><br></div><div><img class="_auto-scale " style="margin:10px;" title="8 Result.png" src="cid:2b107c76-1085-4bae-aef6-384b6eca89dc@icloud.com" alt="8 Result.png" data-inline-image="true" data-mce-src="blob:https://www.icloud.com/3f9a0e67-f4de-4194-8462-c85879818c6e" data-mce-style="margin: 10px;"></div><div><br></div><div><br></div><div><blockquote type="cite"><div class="msg-quote"><div class="_stretch"><span class="body-text-content"><br> </span></div></div></blockquote></div></body></html>