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Photoshop tutorial - How to fix a damaged signature

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bloodjelly
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Photoshop tutorial - How to fix a damaged signature

Postby bloodjelly » Wed Sep 13, 2006 4:09 pm

If you're a graphic designer, you've probably had to put a letter together at one time or another, with signatures from people who have no idea how to use a scanner, or even know what a scanner is. What do they do? Fax it. What happens to the signature? It gets trashed.

In this tutorial we'll clean up said signature up and make it ready to drop in any document.

Step 1: Open the signature file.

Image

Image
Notice the jagged edges and "gaps" in the lines.


Step 2: Change the image mode to RGB if it's not in that mode already, by going to IMAGE > MODE > RGB.

Step 3: If the signature is on a busy background, or isn't black, go to IMAGE > ADJUSTMENT > LEVELS. Drag the black arrow to the right, and the white arrow to the left, so that all three arrows basically sit near the middle, as shown below.

This increases the contrast, and should make the background white, and your signature solid black.

Image


Step 4: Go to FILTER > NOISE > DUST & SCRATCHES. Pick a pixel size that gets rid of the "gaps" in the lettering. I used 2px.

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After applying the dust filter


Step 5: Now we're going to separate the signature from the background layer. Right-click the signature layer (should be the only one - the background layer) and click "Duplicate layer". Name it whatever you want, and delete the background layer that you just copied.

Step 6: Using the magic wand tool (seen below), with the "Contiguous" box UNchecked, and a tolerance of 32, click somewhere in the white part of your image. This will select all the white you've got.

Image
The magic wand tool


Step 7: Let's smooth this thing out. Go to SELECT > MODIFY > SMOOTH and pick a pixel amount that will smooth the signature without distorting it. This might take a few tries, depending on what resolution you're at. I used 5 pixels.

Step 8: If your signature is thick enough to shave off a little, go to SELECT > MODIFY > EXPAND and expand by 1 or 2 pixels. Now hit the delete key to kill all that white and leave you with a transparent background.

If your signature is thin, click CTRL + SHIFT + I to invert the selection, then go to SELECT > MODIFY > EXPAND, and expand by a few pixels. This will make the selection bigger. Now go to EDIT > FILL and fill with black. Invert the selection again and hit the delete key to get rid of the white background.

Image

Not the most glamorous tutorial, but I hope you find it useful. :)
PhotoshopDucky
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Re: Photoshop tutorial - How to fix a damaged signature

Postby PhotoshopDucky » Wed Apr 27, 2011 7:59 am

Well, I can tell you right now. . . it's pretty much 5 years later and this info is still useful to me! LOL.

Seriously, I was looking for a good signature honing tutorial for a while and this is the most clear and concise one I've found online. I must have been searching for a few months and every other tutorial was very convoluted and over-complicated. I like your simplicity.

Essentially, I'm constantly having to print off letters for my boss (with his signature on them) and the signature always comes out grainy. It's pretty obvious that it's a printed signature and not a personalized one. I want to get the "personalized" signature feel. Anyway, I really appreciate you bringing up this subject. I haven't tested the process out yet, but I certainly plan on doing so. I'll be sure to show off my work after I'm done.

Speaking of printing off letters, has anyone on here ever used tracecommunications.com before? Our old print shop just went out of business, so we're looking for a new spot to do all types of printing. We want print-outs that aren't grainy and that look professional. So, does anyone know if they're any good? Thanks, folks! Can't wait to meet you all soon!
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JoanaPhotoshopSupply
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Re: Photoshop tutorial - How to fix a damaged signature

Postby JoanaPhotoshopSupply » Sun May 10, 2020 1:40 am

You can use this smooth edges Photoshop action to fix jagged edges
https://www.photoshopsupply.com/actions/smooth-edges-photoshop-action-free

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