Last updated on
Dec 25, 2025
Quickly edit documents online, add signatures, and send for signing — all from one easy-to-use solution you can access from anywhere.
Authenticate E-Signature Simple Invoice with pdfFiller
How can you authenticate e-signature simple invoices?
To authenticate an e-signature for a simple invoice using pdfFiller, start by uploading your invoice PDF onto the platform. Then, use the e-signature tool to add your signature, which can be either drawn, typed, or uploaded as an image. Once satisfied with the placement, save the document. Finally, ensure you download or share the authenticated invoice directly from pdfFiller.
What is an e-signature on a simple invoice?
An e-signature, or electronic signature, is a digital representation of a person's intent to agree to the contents of a document, such as a simple invoice. It serves the same legal purpose as a handwritten signature and can be integrated into digital documents via software solutions like pdfFiller.
Why authenticating e-signatures is important for digital document workflows?
Authentication of e-signatures is crucial in ensuring the integrity, security, and legal validity of digital documents. With businesses increasingly moving to paperless environments, the need for secure and verifiable e-signatures has surged. Authenticating e-signatures helps prevent fraud, ensures that the document hasn’t been altered, and affirms the identity of signers.
What are typical use cases and industry applications for e-signatures?
E-signatures are widely used across various industries for documents requiring consent and agreement. Common scenarios include invoicing, contracts, real estate transactions, and more. Businesses benefit from reduced turnaround times and enhanced compliance with digital regulations.
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Invoicing: Signers can quickly authorize payment details.
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Contracts: Parties can easily finalize agreements digitally.
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Real Estate: Enabling smooth transaction processes.
How to authenticate an e-signature on a simple invoice in pdfFiller?
Using pdfFiller to authenticate e-signatures on simple invoices is straightforward. Follow these steps:
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Log in to your pdfFiller account.
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Upload your simple invoice PDF.
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Select the e-signature tool and add your signature.
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Save or securely send the completed invoice.
What customization options are available for signatures, initials, and stamps?
pdfFiller offers several customization options for e-signatures. Users can create signatures that reflect their personal style, including the option to use initials or variably-styled stamps to enhance document personalization.
How to manage and store documents that are authenticated via e-signatures?
Managing and storing documents authenticated through e-signatures is pivotal for easy access and compliance. In pdfFiller, you can categorize and tag your documents within folders for quicker retrieval. Additionally, you can set reminders for follow-ups on invoices.
What are the security, compliance, and legal considerations for e-signatures?
The legal standing of e-signatures varies by jurisdiction but is generally recognized as valid under laws like the U.S. ESIGN Act and European eIDAS Regulation. Ensuring your e-signature software, like pdfFiller, complies with these regulations adds a layer of security and helps protect you from legal disputes.
What alternatives to pdfFiller exist for authenticating e-signatures?
While pdfFiller provides robust options for e-signature authentication, several alternatives exist. These platforms vary in features, pricing, ease of use, and compliance measures.
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DocuSign: Industry leader known for its comprehensive features.
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Adobe Sign: Offers seamless integration with Adobe products.
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HelloSign: User-friendly interface with strong compliance.
Conclusion
Authenticating e-signatures on simple invoices with pdfFiller enhances the efficiency and security of your document workflows. As businesses continue to embrace a digital-first approach, integrating effective e-signature solutions will be critical to ensuring swift transactions and compliance. Make the switch and simplify your invoicing process today.
Collect legally binding electronic signatures the easy way
Edit, sign, send — done!
Customize your workflow
Send documents to a single recipient or an entire group. Assign roles, set a signing order, and schedule reminders for a smooth, error-free process.
Collect data efficiently
Create fillable PDF forms and let your recipients complete them from any device. Publish forms online or share them via a direct link to capture data and signatures without chasing people down.
Track and store documents
Get real-time visibility into the signing process and keep track of all your documents in one place. Your files are stored in secure cloud storage, so you can access them anytime and anywhere.
Share & collaborate
Need more eyes on a document before sending? Share it with the team to edit or highlight content, redact sensitive information, leave feedback, and exchange comments.
Maintain security & compliance
Collect signatures in compliance with ESIGN, UETA, eIDAS, and GDPR. Protect your documents with a password, request additional signer authentication, set document expiration dates, and more.
How to send a document for signature?
Upload
Upload your document to pdfFiller and click E-sign.
Add recipients
Choose who needs to sign and add as many recipients as you need.
Prepare
Drag and drop fillable fields on your document and assign them to specific recipients.
Finalize & send
Review your recipients, customize the signing order, set reminders, and hit Send.
Who needs this?
Explore how professionals use pdfFiller to get documents signed.
Sales
Quickly edit contracts, add eSignatures, and send them to clients or vendors for signing without leaving pdfFiller. Track who has signed and who still needs to take action, keeping your business running smoothly.
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Service agreements
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Vendor contracts
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Non-disclosure agreements (NDAs)
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Purchase orders
Human Resources
Create fillable PDF forms for offer letters, employment contracts, and onboarding documents. Let new hires complete and sign them from any device, making the onboarding process accessible and hassle-free for everyone.
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Offer letters
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Employment contracts
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Non-compete agreements
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Benefits enrollment forms
Legal
Share legal documents with your team for review or editing before sending them for signing. Speed up agreement negotiations by allowing all parties to share feedback and make quick edits without endless email chains.
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Contracts and agreements
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Power of attorney forms
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Affidavits
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Settlement agreements
Real Estate
Edit property agreements, add signature fields, and send them to buyers, sellers, or agents for signing. Send documents to a single recipient or an entire group, and track the signing process in real time to ensure timely closings.
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Purchase agreements
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Lease contracts
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Property disclosure forms
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Inspection reports
Education
Create fillable forms for permission slips, enrollment documents, or policy acknowledgments. Allow parents, students, or staff to complete and sign them from any device. Keep track of all signed documents in one secure place for easy access and compliance.
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Permission slips
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Enrollment forms
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Scholarship applications
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Teacher contracts
Finance
Edit financial agreements, add eSignatures, and send them to clients or stakeholders for signing. Allow clients to complete and sign online digital forms from anywhere to simplify loan applications, account openings, and authorizations.
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Loan agreements
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Investment contracts
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Financial statements
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Payment authorizations
Why sign documents with pdfFiller?
Ease of use
Users appreciate pdfFiller's intuitive interface and the ability to manage documents from anywhere without clunky desktop software.
More than eSignature
pdfFiller is a complete solution that offers PDF editing, eSignature, file storage, and collaboration under one roof.
For individuals and teams
Whether you work solo or with a team, pdfFiller equips you with all the tools to handle your daily document tasks.
pdfFiller scores top ratings on review platforms
I love it! my only gripe is not being able to send emails with pdf's as normal attachments. I have to send a lot of PDF's to insurance companies and they complain that their systems cannot open the PDF's as sent from pdffiller so I have to take the time to download them from pdffiller, upload them to my CRM, and then attach them in emails. It would be great to be able to save that time. But other than that I am very impressed with the service.
What do you like best?
I can send as many documents out for signature as I want. No restrictions. I used to use Adobe, but they had a cap on the amount of documents you can send for signature. When I tried to get that upgraded, they had outlandish prices for this same service. With PDFfiller, I can send all the documents I want and I'm also able to save all of them securely.
What do you dislike?
I wish the PDF conversions didn't come out like pictures. When I convert a PDF to Word, it always comes into Word as a picture instead of being able to edit the document. As a recruiter, I receive a lot of resumes that need some work before we can submit them to clients. I still have to use Adobe for this function, so now I'm paying for two PDF programs. I can't just stay with Adobe though because of the above mentioned issues.
Recommendations to others considering the product:
If you need eSignatures, this is the program to go with.
What problems are you solving with the product? What benefits have you realized?
Remote onboarding is a breeze with PDFfiller. I am able to send HR documents to people across the country and still get them to work on time. I'm in VA and have to get employees to work in all states across the country, as well as oversees. We have to get documents to them for signature and faxing doesn't always work. With PDFfiller, we can send anyone any document and get it back fully signed by them. It's truly wonderful.
I can send as many documents out for signature as I want. No restrictions. I used to use Adobe, but they had a cap on the amount of documents you can send for signature. When I tried to get that upgraded, they had outlandish prices for this same service. With PDFfiller, I can send all the documents I want and I'm also able to save all of them securely.
What do you dislike?
I wish the PDF conversions didn't come out like pictures. When I convert a PDF to Word, it always comes into Word as a picture instead of being able to edit the document. As a recruiter, I receive a lot of resumes that need some work before we can submit them to clients. I still have to use Adobe for this function, so now I'm paying for two PDF programs. I can't just stay with Adobe though because of the above mentioned issues.
Recommendations to others considering the product:
If you need eSignatures, this is the program to go with.
What problems are you solving with the product? What benefits have you realized?
Remote onboarding is a breeze with PDFfiller. I am able to send HR documents to people across the country and still get them to work on time. I'm in VA and have to get employees to work in all states across the country, as well as oversees. We have to get documents to them for signature and faxing doesn't always work. With PDFfiller, we can send anyone any document and get it back fully signed by them. It's truly wonderful.
What do you like best?
Easy to learn and easy to use. I use it for filling in permit application forms from the county agencies we need to apply for permits from. They are extremely frustrating in redundancy, asking for the same information over and over. PDFFiller makes it easy to fill out these forms.
What do you dislike?
Some of the buttons seem a little clunky but they are easy to use.
Recommendations to others considering the product:
PDFFILLER is an inexpensive alternative to other vendors.
What problems are you solving with the product? What benefits have you realized?
Easy to fill PDF forms and easy to share them with other people.
Easy to learn and easy to use. I use it for filling in permit application forms from the county agencies we need to apply for permits from. They are extremely frustrating in redundancy, asking for the same information over and over. PDFFiller makes it easy to fill out these forms.
What do you dislike?
Some of the buttons seem a little clunky but they are easy to use.
Recommendations to others considering the product:
PDFFILLER is an inexpensive alternative to other vendors.
What problems are you solving with the product? What benefits have you realized?
Easy to fill PDF forms and easy to share them with other people.
I had some slight issues on my 1st…
I had some slight issues on my 1st attempt as there were fields in different locations than a previous edition of this form, but easily was able to correct the overwriting of several fields. Worked beautifully on several previous (new) documents.
What do you like best?
Being able to bill my clients in a timely manner
What do you dislike?
The fact that you cannot delete entries all at once
Recommendations to others considering the product:
It's a great program to use when your clients need to be billed on 1 500 claim form
What problems are you solving with the product? What benefits have you realized?
Being able to bill my clients
PDF Filler Saver and Protector
Great! Awesome software/product that is very helpful in the business environment.
What I like most with the PDF filler is the ability to secure and password protect a very important document. I like sending documents or exchange with staff for faster and easier collaboration and this software helps us do that while making sure the personal information are protected.
Nothing much as it serves the purpose that I am really looking for. I cannot think of anything that I don't like. I am satisfied.
Watch pdfFiller eSignatures in action
Check out a quick video tutorial that shows how to create and place your signature or send a document for signing.
What businesses achieve with pdfFiller
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How do you authenticate an electronic signature?
Electronic signature verification methods, such as knowledge-based verification, two-factor authentication (2FA), biometric verification, and digital certificate-based verification, help confirm that the person signing the document is who they claim to be.
What is the difference between simple and advanced electronic signature?
As discussed above, simple electronic signatures do not need specific identity verification methods to be used in many countries and situations. Advanced electronic signatures, however, force signers to use digital certificates as a method of identity verification.
What is a simple signature in eIDAS?
A Simple Electronic Signature is defined as “data in electronic form which is attached to or logically associated with other data in electronic form and which is used by the signatory to sign" (eIDAS Article 3.10).