Add Signatures into PDF on Ubuntu 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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Generate your customized signature
Adjust the size and placement of your signature
Download, share, print, or fax your signed document
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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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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
GDPR compliance
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.
Add Signatures into PDF on Ubuntu
Adding signatures to PDF documents on Ubuntu simplifies your workflow. Whether you manage contracts, legal agreements, or business documents, this feature ensures you can securely sign papers from your computer.
Key Features
User-friendly interface for easy navigation
Support for multiple signature formats, including digital and handwritten
Efficient batch signing for multiple documents
Secure encryption to protect your signed documents
Integration with email and cloud services for easy sharing
Potential Use Cases and Benefits
Streamline document approval processes in businesses
Facilitate remote contract signing for legal professionals
Enhance security in sensitive communications
Improve efficiency in managing electronic documents
Reduce paper usage and promote eco-friendly practices
This feature solves the problem of complex signature processes. By allowing you to add signatures easily, you save time, reduce errors, and maintain professionalism. Instead of printing, signing, and scanning documents, you can complete everything digitally, which leads to a smoother workflow.
How to Add Signatures into PDF on Ubuntu
Learn to manage PDFs in clicks on Ubuntu.
01
Open the browser you prefer to use most and go to pdfFiller to create an account.
02
From your Dashboard, click the Add New button and upload a doc that you need to Add Signatures into PDF on Ubuntu.
03
Move the cursor to the Add New button to explore available importing methods and choose the one that suits you best.
04
Use the tools from the top toolbar to modify the form’s content.
05
Rearrange, insert new, or delete old pages if required.
06
Include fillable fields in your doc to allow your recipients to fill out docs by themselves.
07
Double-check your file to make sure the information is up-to-date and correct.
08
Click Done to finish the editing process and return to the Dashboard.
09
Combine files in the Documents folder.
10
Save your document in the desired format with the Save As option or send it out for signing. You get several options for sending your document.
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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.
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How do I insert a Digital signature in LibreOffice?
Click the File menu in LibreOffice and then click Digital Signatures > Digital Signatures. In the resulting popup, click Sign Document. Make sure to click Sign Certificate and not Start Certificate Manager.
How do I add a signature to a Libreoffice PDF?
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.
How do I insert a digital signature into a PDF?
Steps to sign a PDF Open the PDF document or form that you want to sign. Click the Sign icon in the toolbar. ... The Fill & Sign tool is displayed. ... The form fields are detected automatically. ... Click the Sign icon in the toolbar, and then choose whether you want to add your signature or just initials.
How do I insert a Digital signature into a PDF?
Steps to sign a PDF Open the PDF document or form that you want to sign. Click the Sign icon in the toolbar. ... The Fill & Sign tool is displayed. ... The form fields are detected automatically. ... Click the Sign icon in the toolbar, and then choose whether you want to add your signature or just initials.
How do I add a digital signature to a PDF in Linux?
Select Annotate PDF from the File menu and select your PDF file to be signed. Click the Image button in the toolbar (it looks like a silhouette of a person) or press Shift+Ctrl+I (that is "I" for Image). Click on document, and a file browser dialog will open. Select the image of your signature.
How do I add a signature in Ubuntu?
On Ubuntu: Xournal through the Ubuntu Software Center. Open Xournal. Select "Annotate PDF" from the File menu and select your PDF file to be signed. Click the "Image" button in the toolbar (it looks like a silhouette of a person). Click on document. ... Select a PNG image of your signature.
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