Create a legally-binding electronic signature and add it to contracts, agreements, PDF forms, and other documents – regardless of your location. Collect and track signatures with ease using any device.
Drop document here to upload
Select from device
Up to 100 MB for PDF and up to 25 MB for DOC, DOCX, RTF, PPT, PPTX, JPEG, PNG, JFIF, XLS, XLSX or TXT
Note: Integration described on this webpage may temporarily not be available.
Upload a document
Generate your customized signature
Adjust the size and placement of your signature
Download, share, print, or fax your signed document
Every eSignature tool you need – inside a powerful PDF software
eSignature solution
Document tracking
Enhanced productivity
Custom branding
Security & compliance
eSign documents and collect signatures
Easily fill, edit, and sign your PDF documents in a single application, on any device.
Type, draw, or use a signature converter to create an eSignature from a picture of your handwritten autograph.
Create fillable PDFs and send them for signature to one or multiple recipients.
Set signer roles and customize a signing order.
Get visibility into the signing process
Receive instant alerts once signatures are in place.
Specify CC’d recipients and set actions upon document completion.
Monitor changes in your documents with audit trails.
Speed up your approval workflows
Send documents for signature faster by sharing them via short links.
Simplify data and signature collection by posting fillable PDF forms online.
Collect payments along with signed documents.
Showcase your branding when requesting signatures
Display your logo on signature invites, user notifications, and in the eSignature editor.
Customize an email message for your eSignature invites.
Redirect signers to your website once they complete your document.
Maintain industry-leading security and compliance
Authenticate signers via a password.
Make your document workflows compliant with industry-specific regulations, including HIPAA.
Secure the authenticity of a document with a unique ID.
Set an expiration date for your document.
Join the world’s largest companies
Employees at these companies use our products.
How to Add a Signature to PDF (and Send it Out for Signature)
Watch the video guide to learn more about pdfFiller's online Signature feature
pdfFiller scores top ratings in multiple categories on G2
4.6/5
— from 710 reviews
4.0
Very easy program to work with and edit if you need to make changes and also cost effective, you don't have to pay the realtor half the rent by doing it yourself.
Anonymous Customer
4.0
I have trouble using the pdffiller on my laptop, I can not upload b/c the screen is not wide enough to get to the click button. I can on my desktop when I go into the office. Sometimes the app does not give me the ability to save or download - I have to play with it back in forth before it will save as a fillable file. But my biggest issue is using my laptop when I work remotely and I have to use it. Thanks for inquiry and the survey to give me the opportunity to voice a concern.
Josie
Sign any document using pdfFiller’s eSignature service without hassle
Add your virtual signature in just a few simple steps – without a scanner or printer.
Upload
Upload your document to pdfFiller and open it in the editor.
Sign
Generate and save your electronic signature using the method you find most convenient.
Tweak
Resize your signature and adjust its placement on a document.
Retrieve
Save a signed, printable document on your device in the format you need or share it via email, a link, or SMS. You can also instantly export the document to the cloud.
Upload document
Why choose pdfFiller for eSignature and PDF editing?
Cross-platform solution
Upload your document to pdfFiller and open it in the editor.
Unlimited document storage
Generate and save your electronic signature using the method you find most convenient.
Widely recognized ease of use
Resize your signature and adjust its placement on a document.
Reusable templates & forms library
Save a signed, printable document on your device in the format you need or share it via email, a link, or SMS. You can also instantly export the document to the cloud.
The benefits of electronic signatures
Bid farewell to pens, printers, and paper forms.
Efficiency
Enjoy quick document signing and sending and reclaim hours spent on paperwork.
Accessibility
Sign documents from anywhere in the world. Speed up business transactions and close deals even while on the go.
Cost savings
Eliminate the need for paper, printing, scanning, and postage to significantly cut your operational costs.
Security
Protect your transactions with advanced encryption and audit trails. Electronic signatures ensure a higher level of security than traditional signatures.
Legality
Electronic signatures are legally recognized in most countries around the world, providing the same legal standing as a handwritten signature.
Sustainability
By eliminating the need for paper, electronic signatures contribute to environmental sustainability.
Enjoy straightforward eSignature workflows without compromising data security
Regulates the use and holding of personal data belonging to EU residents.
SOC 2 Type II Certified
Guarantees the security of your data & the privacy of your clients.
PCI DSS certification
Safeguards credit/debit card data for every monetary transaction a customer makes.
HIPAA compliance
Protects the private health information of your patients.
CCPA compliance
Enhances the protection of personal data and the privacy of California residents.
Protected Equation Log Feature
The Protected Equation Log feature helps you keep track of your important calculations while maintaining privacy and security. With this tool, you can record and store your equations safely. It is designed to cater to users who require a robust solution for managing sensitive mathematical data.
Key Features
Secure storage for all your equations
Easy access and retrieval of logged calculations
User-friendly interface for quick note-taking
Automatic backup for added safety
Customizable logging options to suit your needs
Potential Use Cases and Benefits
Students can keep track of their math homework and exam preparations
Professionals can document formulas used in projects securely
Researchers can log experimental calculations to avoid data loss
Teachers can manage class assignments and share resources privately
This feature addresses your need for a secure and organized way to handle mathematical equations. By using the Protected Equation Log, you minimize the risk of losing critical information, ensuring that your work remains accessible and safeguarded. Whether you are a student, professional, or educator, this tool simplifies the equation logging process, allowing you to focus on your tasks with confidence.
For pdfFiller’s FAQs
Below is a list of the most common customer questions. If you can’t find an answer to your question, please don’t hesitate to reach out to us.
In the simplest case, the logarithm of an unknown number equals another number: log x = y. Raise both sides to exponents of 10, and you get 10 (log x) = 10y. Since 10(log x) is simply x, the equation becomes x = 10y.
How do you solve logarithmic equations with different bases?
15:31 32:43 Suggested clip Solving Logarithmic Equations With Different Bases — Algebra 2 YouTubeStart of suggested client of suggested clip Solving Logarithmic Equations With Different Bases — Algebra 2
How do you get rid of Log on both sides?
Step 1: bring all the logs on the same side of the equation and everything else on the other side. Step 3: Exponential to cancel the log (run the hook). Step 4: Solve for x. Step 5: Check your answer. Step 1: Take logs of both sides using one of the given bases.
How do you solve for a base?
Change of base formula Logo x = Logo x/Logo b Pick a new base and the formula says it is equal to the log of the number in the new base divided by the log of the old base in the new base. Solution: Change to base 10 and use your calculator. Now use your calculator and round to hundredths.
What is the base in log?
The base-10, or “common”, log is popular for historical reasons, and is usually written as “log(x)”. If a log has no base written, you should generally (in algebra classes) assume that the base is 10. The other important log is the “natural”, or base-e, log, denoted as “LN(x)” and usually pronounced as “ell-enn-of-x”.
How do you move logs to the other side of an equation?
an x= x LN a to move the unknown value down in front of the LN. Take the terms in x to one side of the equation and other terms to the other side. Simplify using the rules for indices. Finally, take the log of both sides to move the x down and solve for x.
How do you get rid of a log on both sides of an equation?
To rid an equation of logarithms, raise both sides to the same exponent as the base of the logarithms. In equations with mixed terms, collect all the logarithms on one side and simplify first.
Ready to try pdfFiller's? Protected Equation Log Grátis
Upload a document and create your digital autograph now.
