How do I add a handwritten signature to Gmail?

Draw your signature using a signature pad tool and download it as a PNG. In Gmail: click the gear icon, go to See All Settings, scroll to the Signature section, click the image icon in the signature editor toolbar, upload your signature PNG. Position it where you want it in your email signature block. Click Save Changes.

How do I add a signature image to Outlook?

In Outlook desktop: go to File, then Options, then Mail, then Signatures. Create a new signature or edit an existing one. Click the image icon in the editor, select your signature PNG file, and resize as needed. In Outlook web (outlook.com): go to Settings, View All Outlook Settings, Mail, Compose and Reply, and use the image button in the signature editor.

What size should my signature image be for email?

Keep the image width between 200-400 pixels. Too large makes the email look unprofessional and triggers spam filters. Too small makes the signature unreadable. Height should be proportional — typically 60-120 pixels for a standard signature. File size should be under 50KB to avoid slow email loading.

Will the transparent background work in email?

It depends on the email client. Gmail, Apple Mail, and most modern email clients render PNG transparency correctly — your signature floats naturally over the email background. Some older Outlook versions fill transparent areas with white. If your emails go primarily to corporate Outlook users, test by sending yourself a test email first.

Does the signature image appear in every email?

Yes, once set up. Gmail, Outlook, and Apple Mail let you configure a default signature that automatically appends to every new email and reply. You can also set different signatures for different email accounts and choose whether to include it on replies and forwards.

Can I add text alongside my signature image?

Absolutely. Most people set up their email signature with text info (name, title, phone, website) AND a handwritten signature image together. Place the drawn signature image above or below the text block. The signature image adds a personal, human touch to otherwise plain text contact information.

Will the image increase my email size?

Minimally. A properly optimized signature PNG is 10-50KB — negligible compared to email size limits (typically 25MB). If you are concerned, compress the image using an image compressor tool before uploading. The signature adds the same file size to every email, so keeping it small is good practice.

Do signature images affect email deliverability?

A single small signature image (under 50KB) has no measurable impact on deliverability. However, emails with multiple large images or excessive HTML formatting can trigger spam filters. Keep your signature image small and limit your entire signature block to under 100KB total (images + HTML combined).

Free Signature Maker for Email — Gmail, Outlook & Apple Mail Setup

Last updated: April 20267 min readGenerator Tools

A handwritten signature image in your email gives every message a personal, professional touch that typed text cannot match. Draw your signature once, download it as a PNG, and add it to Gmail, Outlook, or Apple Mail in under 5 minutes.

Step 1: Create Your Signature Image

Open Signature Pad
Set pen color to black or dark blue (these reproduce best in email clients)
Set pen thickness to medium (too thin gets lost in email; too thick looks heavy)
Draw your signature
Download as PNG — transparent background is essential for clean placement in emails

Step 2: Optimize for Email

Before uploading to your email client, optimize the image:

Resize to 200-400px wide — use Resize Image to set the exact width
Keep file size under 50KB — use Compress Image if needed
Verify transparency — open the PNG and make sure the background is transparent (checkerboard pattern), not white

Gmail Setup

Open Gmail and click the gear icon (top right)
Click "See all settings"
Scroll down to the "Signature" section
Click "+ Create new" (or edit your existing signature)
In the signature editor, click the image icon (mountain/picture icon in the toolbar)
Upload your signature PNG file
Position it in your signature block — typically below your name and above contact info, or at the very end
Set "Signature defaults" — choose which signature to use for new emails and replies
Scroll down and click "Save Changes"

Gmail tip: After uploading the image, click it and select "Small" or "Medium" size if it appears too large in the editor. Gmail may display the image larger in the editor than it appears in sent emails.

Outlook Setup (Desktop)

Open Outlook and go to File > Options > Mail
Click "Signatures..."
Click "New" to create a new signature or select an existing one to edit
In the editor, click the image icon
Browse to and select your signature PNG file
Resize the image by clicking it and dragging the corner handles
Add your text information (name, title, phone) above or below the image
Set the signature as default for new messages and replies/forwards
Click OK

Outlook Setup (Web / Outlook.com)

Go to Settings (gear icon)
Click "View all Outlook settings"
Navigate to Mail > Compose and reply
In the signature editor, click the image button to insert your PNG
Arrange text and image positioning
Toggle "Automatically include my signature" for new messages and replies
Click Save

Apple Mail Setup (Mac)

Open Mail and go to Mail > Settings > Signatures (or Preferences > Signatures on older macOS)
Select your email account and click "+" to create a new signature
Drag your signature PNG file from Finder directly into the signature editor
Add your text information around the image
Set the signature as default using the dropdown at the bottom
Close Settings — it saves automatically

Apple Mail tip: Make sure "Always match my default message font" is unchecked if your signature includes specific formatting. This prevents Mail from overriding your signature layout.

Platform Comparison

Feature	Gmail	Outlook Desktop	Outlook Web	Apple Mail
Image upload method	Upload via toolbar icon	Browse file dialog	Insert via toolbar	Drag and drop from Finder
PNG transparency	✓ Renders correctly	~May fill white on older versions	✓ Renders correctly	✓ Renders correctly
Max signature size	✓ Generous (no hard limit)	~10,000 characters total	~8,192 characters total	✓ Generous
Multiple signatures	✓ Yes	✓ Yes	✓ Yes	✓ Yes
Per-account signatures	✓ Yes	✓ Yes	✓ Yes	✓ Yes
Auto-append to replies	✓ Configurable	✓ Configurable	✓ Configurable	✓ Configurable

What Your Email Signature Should Include

A complete professional email signature combines your drawn signature with essential contact info:

Your handwritten signature image (the personal touch)
Full name
Title / role
Company name (if applicable)
Phone number
Website or LinkedIn URL

Keep it concise. A signature longer than 6 lines of text plus the image starts to feel excessive. Skip inspirational quotes, legal disclaimers (unless legally required), and multiple social media icons.

Honest Limitations

Older Outlook desktop versions may render PNG transparency as white — test by sending yourself an email
Some corporate email systems strip images from signatures — your recipient may see a broken image placeholder
Mobile email apps sometimes resize or reformat signatures unpredictably
Very large signature images (over 100KB) may trigger spam filters on some mail servers

Supporting Tools

Signature Pad — draw and download your signature
Resize Image — resize to 200-400px width for email
Compress Image — optimize file size under 50KB
Image Converter — convert between PNG, JPG, and other formats if needed
Add Text to PDF — sign PDF attachments before sending
Compress PDF — shrink signed PDF attachments for email

Draw your signature once, use it in every email — Gmail, Outlook, Apple Mail.

Open Signature Pad

Free Signature Maker for Email — Gmail, Outlook & Apple Mail Setup

Step 1: Create Your Signature Image

Step 2: Optimize for Email

Gmail Setup

Outlook Setup (Desktop)

Outlook Setup (Web / Outlook.com)

Apple Mail Setup (Mac)

Platform Comparison

What Your Email Signature Should Include

Honest Limitations

Supporting Tools

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How to Create a Signature

Transparent Signature

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