How-to guides
Add your signature anywhere
Every guide below follows the same honest recipe: create your signature once with a free tool on this site, download it as a transparent PNG, and place it wherever the document or email lives. Pick the app you're working in.
Email clients
How to add a signature in Gmail
open Settings, create your signature, set it as default, and save.
How to add a signature in Apple Mail
open Mail Settings, create a signature per account, drag in your signature image, and assign it to outgoing mail.
How to add a signature in Yahoo Mail
open Settings → More Settings → Writing email, toggle the signature on per account, and style it.
How to add an email signature on iPhone
Settings → Mail → Signature, set per-account signatures, and learn the workaround for adding an image signature in iOS Mail.
Documents
How to insert a signature in Word
paste a transparent PNG, use a signature line, or reuse it with Quick Parts.
How to add a signature in Google Docs
Add a signature to Google Docs by inserting a transparent PNG or using the built-in drawing tool. Step-by-step instructions with image positioning tips.
How to insert a signature in Excel
place a transparent PNG over a cell, or add Microsoft's built-in signature line for approvals.
How to add a signature to a PDF
create a transparent signature PNG, then place it with Adobe Reader, Edge, Preview, or your phone's markup tools.
How to sign a document sent by email
save the attachment, add your signature PNG in a PDF or Word editor, and reply with the signed copy.