1. Mailtrack
Read receipts and link tracking for Gmail.
Why it replaces Online Signature Generator for Email & PDF: Covers similar ground in the Email category: Read receipts and link tracking for Gmail.
Best Online Signature Generator for Email & PDF Alternatives in 2026
Online Signature Generator for Email & PDF is a strong option, but it is not the right fit for everyone. Below are 10 alternatives compared on rating, install base, pricing and the use case each one actually wins on.
About Online Signature Generator for Email & PDF
With BoloForms Signature Chrome extension, adding and updating signatures in Outlook™, Gmail™, Google Docs™ and other popular applications has never been simpler. Some of the main features: •Create beautiful Outlook™ signatures in seconds Quickly set up a custom signature for Outlook™ that includes your name, job title, contact details and company branding. Transform plain-text signatures into visually impressive designs with images, colors and fonts. • Impress your Gmail™ contacts Give your Gmail™ emails a personal touch with a custom signature configured directly from the BoloForms Signature extension. Go from no Gmail™ signature to a fully designed signature in just minutes. • Electronically sign Google Docs™ like a pro Hand-sign or upload a signature image to sign Google Docs™, Sheets™, Forms™ and Drawings™ in seconds. Perfect for legally binding contracts, NDAs, SOWs and other agreements you share with clients and partners. • Send documents for e-signature Upload a PDF file right from the extension and request signatures from recipients.
Comparison at a glance
| Extension | Rating | Users | Pricing | Best for |
|---|---|---|---|---|
| Online Signature Generator for Email & PDF (original) | 4.4 | 1K+ | Free | The easiest way to add e-signatures to your emails, documents, PDFs. Outlook email signature, Contract Signature. |
| Mailtrack | 4.4 | 3M+ | Freemium | Salespeople and recruiters who need to know when an email was actually opened. |
| Apollo.io: Free B2B Phone Number & Email Finder | — | — | Free | Apollo enables users to find contact info, connect with buyers, track emails, and more for free. |
| HubSpot Sales | — | — | Free | Email tracking, CRM for Gmail, and sales productivity tools in your inbox |
| Email Finder by ContactOut – Email Lookup Tool | 4.4 | 600K+ | Free | Find emails for 75% of Linkedin or ANY website. Save profiles to CRM. Chatgpt comments & email writer. Trusted by 76% of Fortune500. |
| Email Finder by Snov.io | 4.9 | 400K+ | Free | Find email addresses on any website. Our Email Finder lets you collect leads and grow sales on the go. |
| DocHub - Sign PDF from Gmail | 4.4 | 300K+ | Free | Sign and edit PDF documents |
| WiseStamp Email Signature Chrome Extension | 3.9 | 200K+ | Free | WiseStamp email signature |
| ClickUp: Tasks, Screenshots, Email, Time | — | — | Free | ClickUp is a productivity platform that makes your personal and work lives more productive, saving you time. |
| Briskine: Email templates for Gmail™ | 4.5 | 100K+ | Free | Write emails faster! Increase your productivity with templates and shortcuts on Gmail™, Outlook, or LinkedIn. |
| Gmail™ Email Templates by cloudHQ | 4.2 | 100K+ | Free | Beautiful email templates for Gmail. Design your templates or import templates from Mailchimp. With team sharing! |
Online Signature Generator for Email & PDF alternatives in detail
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2. Apollo.io: Free B2B Phone Number & Email Finder
Apollo enables users to find contact info, connect with buyers, track emails, and more for free.
Why it replaces Online Signature Generator for Email & PDF: Covers similar ground in the Email category: Apollo enables users to find contact info, connect with buyers, track emails, and more for free.
3. HubSpot Sales
Email tracking, CRM for Gmail, and sales productivity tools in your inbox
Why it replaces Online Signature Generator for Email & PDF: Covers similar ground in the Email category: Email tracking, CRM for Gmail, and sales productivity tools in your inbox
4. Email Finder by ContactOut – Email Lookup Tool
Find emails for 75% of Linkedin or ANY website. Save profiles to CRM. Chatgpt comments & email writer. Trusted by 76% of Fortune500.
Why it replaces Online Signature Generator for Email & PDF: Covers similar ground in the Email category: Find emails for 75% of Linkedin or ANY website. Save profiles to CRM. Chatgpt comments & email writer. Trusted by 76% of Fortune500.
5. Email Finder by Snov.io
Find email addresses on any website. Our Email Finder lets you collect leads and grow sales on the go.
Why it replaces Online Signature Generator for Email & PDF: Covers similar ground in the Email category: Find email addresses on any website. Our Email Finder lets you collect leads and grow sales on the go.
6. DocHub - Sign PDF from Gmail
Sign and edit PDF documents
Why it replaces Online Signature Generator for Email & PDF: Covers similar ground in the Email category: Sign and edit PDF documents
7. WiseStamp Email Signature Chrome Extension
WiseStamp email signature
Why it replaces Online Signature Generator for Email & PDF: Covers similar ground in the Email category: WiseStamp email signature
8. ClickUp: Tasks, Screenshots, Email, Time
ClickUp is a productivity platform that makes your personal and work lives more productive, saving you time.
Why it replaces Online Signature Generator for Email & PDF: Covers similar ground in the Email category: ClickUp is a productivity platform that makes your personal and work lives more productive, saving you time.
9. Briskine: Email templates for Gmail™
Write emails faster! Increase your productivity with templates and shortcuts on Gmail™, Outlook, or LinkedIn.
Why it replaces Online Signature Generator for Email & PDF: Covers similar ground in the Email category: Write emails faster! Increase your productivity with templates and shortcuts on Gmail™, Outlook, or LinkedIn.
10. Gmail™ Email Templates by cloudHQ
Beautiful email templates for Gmail. Design your templates or import templates from Mailchimp. With team sharing!
Why it replaces Online Signature Generator for Email & PDF: Covers similar ground in the Email category: Beautiful email templates for Gmail. Design your templates or import templates from Mailchimp. With team sharing!
Compare Online Signature Generator for Email & PDF head-to-head
Direct comparisons with the extensions people weigh against it.
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Frequently asked questions
What is the best alternative to Online Signature Generator for Email & PDF?
Mailtrack is the closest match. Covers similar ground in the Email category: Read receipts and link tracking for Gmail.
Is there a free alternative to Online Signature Generator for Email & PDF?
Yes — Apollo.io: Free B2B Phone Number & Email Finder, HubSpot Sales, Email Finder by ContactOut – Email Lookup Tool are free.