Add Signatures into PDF on Linux For Free

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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Upload a document
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Generate your customized signature
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Adjust the size and placement of your signature
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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

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Very reliable My overall experience with this software has been 100% positive. I like that no matter what kind of forms I need I can always find everything that I need on this software. I love everything about this software. I cant think of anything negative about it.
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4.0
organization I wish the updates had an option to keep the title and not make duplicates. I like to keep "my documents" organized and not all the downloads unless I want to save it as multiple copies. I love that it combines pdfs w other docs. I love the highlight and annotate features.
Miriam Shaw

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.
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Sign

Generate and save your electronic signature using the method you find most convenient.
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Tweak

Resize your signature and adjust its placement on a document.
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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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Upload document
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Why choose pdfFiller for eSignature and PDF editing?

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Cross-platform solution

Upload your document to pdfFiller and open it in the editor.
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Unlimited document storage

Generate and save your electronic signature using the method you find most convenient.
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Widely recognized ease of use

Resize your signature and adjust its placement on a document.
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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.
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Efficiency

Enjoy quick document signing and sending and reclaim hours spent on paperwork.
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Accessibility

Sign documents from anywhere in the world. Speed up business transactions and close deals even while on the go.
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Cost savings

Eliminate the need for paper, printing, scanning, and postage to significantly cut your operational costs.
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Security

Protect your transactions with advanced encryption and audit trails. Electronic signatures ensure a higher level of security than traditional signatures.
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Legality

Electronic signatures are legally recognized in most countries around the world, providing the same legal standing as a handwritten signature.
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Sustainability

By eliminating the need for paper, electronic signatures contribute to environmental sustainability.

Enjoy straightforward eSignature workflows without compromising data security

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GDPR compliance

Regulates the use and holding of personal data belonging to EU residents.
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SOC 2 Type II Certified

Guarantees the security of your data & the privacy of your clients.
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PCI DSS certification

Safeguards credit/debit card data for every monetary transaction a customer makes.
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HIPAA compliance

Protects the private health information of your patients.
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CCPA compliance

Enhances the protection of personal data and the privacy of California residents.

Add Signatures into PDF on Linux

Adding signatures to PDFs on Linux simplifies document management. With this feature, you can easily sign, validate, and share your important documents, ensuring authenticity and compliance.

Key Features

Support for multiple signature formats
User-friendly interface for easy navigation
Integration with popular PDF viewers
Fast processing of documents
Security options to protect your signed files

Potential Use Cases and Benefits

Signing contracts and agreements quickly
Validating transactions in a secure manner
Enhancing collaboration with team signatures
Streamlining legal document workflows
Providing proof of approval for business proposals

This feature solves your problem by providing a seamless way to sign PDFs on Linux. You can eliminate the hassle of printing, signing, and scanning documents. Instead, simply add your signature digitally and keep your processes efficient and eco-friendly.

How to Add Signatures into PDF on Linux

Learn to manage PDF documents in a matter of clicks on Linux.

01
Open your preferred browser and go to the pdfFiller website.
02
Sign up for a free account to be able to use the Add Signatures into PDF on Linux feature for Linux.
03
You can also upload a file from pdfFiller's library or from a cloud storage service.
04
In the opened document, use the top toolbar’s tools to insert, replace, or highlight/blackout text and place new shapes.
05
Change your pages' order, attach new pages, or remove them.
06
To make your sample interactive and allow a recipient (the green button above the red one).
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Check your document once more to make sure it looks like you want it.
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Click Done to close the editor and apply the changes.
09
Open the Documents folder instead of Dashboard, select a few docs. Then, select More > Merge to create a new file.
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Send the document to a recipient(s) with one of the available options or save the file in a needed format by clicking Save As.

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.
What if I have more questions?
Contact Support
Open the file with acroread, the password is the ZIP of the city. Click on the question mark, a window with title “Signature Validation Status” opens. Click “Signature Properties” to open the window with the same title. Click “Show Certificate” to open the certificate window.
5 Answers Choose "Annotate PDF" from the File menu and select the PDF to sign. Click the "Image" button in the toolbar. Click on document. Select an image of your signature. Optional: export to PDF so you have a new copy.
PDF annotation on Linux using Evince. Find the PDF file you want to annotate and open it in Evince. Once the PDF is loaded in Evince, click the Thumbnails dropdown arrow on the upper left corner. A menu of options will appear, and you will need to choose the Annotations option.
Go to the “File” menu and, under “Digital signature”, choose “Sign existing PDF...” Choose the file you wish to sign. Libreoffice will open the file in read-only mode, and will give you an additional toolbar that includes the “Sign documents” button. Click on this button.
Launch uPdf, select the Add an image tool, draw a rectangle around the area where you want the signature to go and select the image file with your signature. A PNG with a transparent background works best. Okular PDF viewer has this built-in with annotations.
See how to sign a PDF Open the PDF document and select Sign from the top tools bar. ... Create your signature and initials if not already done. ... From the Sign panel, select your signature, move over to the field where you want to add it, and then click to place the signature. ... The form fields are detected automatically.

Ready to try pdfFiller's? Add Signatures into PDF on Linux

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