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.
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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.
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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
5.0
Excellent tool, very useful and easy to use
In my work we use a lot of PDF for contact with the client and the truth is that it is useful to have such a tool to make it quick and easy; It's something less to think about.
The best thing about this tool is that it solves a basic problem with the PDFs we receive: editing them. It is also very easy to use, saves a lot of time and has the possibility of adding a digital signature to each document.
Some form formats are more complex to edit and the tool gets confused, but it happens with all other tools.
Verified Reviewer
5.0
It's fine so far, I double checked for accuracy off of the tax tables and it calculated correctly which is a positive for me and very helpful and a huge timesaver to know it is accurate and reliable
Susan K
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.
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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.
Regulate Quantity Log Feature
The Regulate Quantity Log feature helps you keep track of your inventory with ease. This tool is designed to provide you with accurate and timely information about your stock levels, ensuring that you always meet demand without overstocks.
Key Features
Real-time inventory tracking
Customizable alerts for low stock levels
User-friendly interface for easy navigation
Detailed reporting on inventory trends
Integration with existing inventory management systems
Potential Use Cases and Benefits
Businesses can avoid stockouts and lost sales by staying informed
Retailers can optimize their inventory turnover rates with precise data
Manufacturers can maintain efficient production schedules with accurate stock levels
E-commerce platforms can improve customer satisfaction by ensuring product availability
By using the Regulate Quantity Log feature, you can solve common inventory challenges. This tool allows you to react promptly to changes in demand, reducing waste and improving your bottom line. You will gain peace of mind knowing that you have a reliable system in place to manage your stock.
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.
The answer lies within the way our ears perceive sound. The point is that our sensation of 'loudness' is LOGARITHMIC. This means that we are much more sensitive to small variations in amplitude for silent sounds than for loud sounds.
Is volume linear?
A linear volume aggregates multiple physical volumes into one logical volume. For example, if you have two 60 GB disks, you can create a 120 GB logical volume. The physical storage is concatenated. Creating a linear volume assigns a range of physical extents to an area of a logical volume in order.
How does a logarithmic potentiometer work?
Logarithmic potentiometers are used as volume controls in audio equipment because the response of the human ear to the loudness of sound is also logarithmic. Using a log pot therefore gives the effect that a setting of full volume on the control sounds twice as loud as a setting of half volume.
What is logarithmic potentiometer?
Logarithmic potentiometers are used as volume controls in audio equipment because the response of the human ear to the loudness of sound is also logarithmic. Using a log pot therefore gives the effect that a setting of full volume on the control sounds twice as loud as a setting of half volume.
How does a potentiometer work?
Potentiometers work by having a resistive element inside. Both end terminals are attached to it, and do not move. The wiper travels along the strip when the knob is turned. The symbol for a potentiometer is the same one as a resistor, save for an arrow in the middle.
What is the difference between A and B potentiometers?
500k “A” would denote an audio taper pot, and the “B” suffix would denote a linear taper pot. The only difference is the (taper) of the pot, or “how gradually it rolls off”. Most manufacturers use either (2) audio taper pots for volume + tone or would use audio taper for volume, and linear taper for tone.
How do you know if a potentiometer is linear or logarithmic?
UncleFluffy. If there's no marking on the pot, turn it to roughly half-way then measure the resistance between the wiper and each end. If they're close, then it's linear. If they're substantially different, then it's audio/log taper.
What is a log taper potentiometer?
Log Taper Potentiometers are potentiometers that change resistance logarithmically as you turn the wiper of the potentiometer. Our ears perceive sound in a logarithmic fashion. If you were to use a linear potentiometer for volume control, increasing and decreasing sound, the volume changes would not turn out right.
Ready to try pdfFiller's? Regulate Quantity Log
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