Convert a pen signature like a marker or fountain pen using the tools on line

Question

Starting from this old question, How to convert a signature from JPG to vector strokes?, or other similar, without to have installed anything on my notebook, is there the possibility to trasform my signature written with a ballpoint pen and make it as if I use a marker or fountain pen?

Here there is a crop of my signature:

I hope not to disturb you.

I use only Paint and Microsoft Picture Manager of Office and I hope that exist a free online tool without registration that can do this.

Answer 1

You can try to use the online Photoshop clone Photopea.

• Drag and drop the image into Photopea.
• Use Filter > Blur > Gaussian Blur to smoothen the image a bit:
  
• Use Filter > Other > Maximum to make the lines a little bit thinner:
  
• Use Filter > Other > Minimum to make the lines a little bit wider again:
  
• Use Filter > Noise > Dust & Scratches to remove the grainy details:
  
• Use Image > Adjustments > Threshold to make the image black and white again:
  

I don't know if the image you posted is in full resolution. If the original is in larger resolution it might not work as intended.

Be aware that the image you have is 1-bit (only black and white) without anti-aliasing. So if the resolution isn't high enough in the final physical size you end up using the image, the edges could look jagged.