Switch from Nitro to pdfFiller for a Add Digital Signature PDF Solution For Free

Use pdfFiller instead of Nitro to fill out forms and edit PDF documents online. Get a comprehensive PDF toolkit at the most competitive price.
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.
0
Forms filled
0
Forms signed
0
Forms sent

Discover the simplicity of processing PDFs online

Card illustration
Upload your document in seconds
Card illustration
Fill out, edit, or eSign your PDF hassle-free
Card illustration
Download, export, or share your edited file instantly

Switch from Nitro to pdfFiller in 4 simple steps

1
Sign up for free using your email, Google, or Facebook account.
2
Upload a PDF from your device or cloud storage, check the online library for the form you need, or create a document from scratch.
3
Edit, annotate, redact, or eSign your PDF online in seconds.
4
Share your document, download it in your preferred format, or save it as a template.

Experience effortless PDF management with the best alternative to Nitro

Create and edit PDFs

Create and edit PDFs

Instantly customize your PDFs any way you want, or start fresh with a new document.
Fill out PDF forms

Fill out PDF forms

Stop spending hours doing forms by hand. Complete your tax reporting and other paperwork fast and error-free.
Build fillable documents

Build fillable documents

Add fillable fields to your PDFs and share your forms with ease to collect accurate data.
Save reusable templates

Save reusable templates

Reclaim working hours by generating new documents with reusable pre-made templates.
Get eSignatures done

Get eSignatures done

Forget about printing and mailing documents for signature. Sign your PDFs or request signatures in a few clicks.
Convert files

Convert files

Say goodbye to unreliable third-party file converters. Save your files in various formats right in pdfFiller.
Securely store documents

Securely store documents

Keep all your documents in one place without exposing your sensitive data.
Organize your PDFs

Organize your PDFs

Merge, split, and rearrange the pages of your PDFs in any order.

Customer trust proven by figures

pdfFiller is proud of its massive user base and is committed to delivering the greatest possible experience and value to each customer.
740K
active users
239
countries
75K
new subscribers per month
105K
user reviews on trusted platforms
420
fortune 500 companies
4.6/5
average user rating

Get started with
an all‑in‑one PDF software

Save up to 40 hours per month with paper-free processes
Make quick changes to your PDFs even while on the go
Streamline approvals, teamwork, and document sharing
Decoration
G2 Badge
G2 recognizes pdfFiller as one of the best tools to power your paperless office
4.6/5
— from 710 reviews
Users Most Likely To Recommend - Summer 2025
Grid Leader in Small-Business - Summer 2025
High Performer - Summer 2025
Regional Leader - Summer 2025
Easiest To Do Business With - Summer 2025
Best Meets Requirements- Summer 2025
Best Support - Summer 2025
Easiest Setup- Summer 2025

Our user reviews speak for themselves

Read more or give pdfFiller a try to experience the benefits for yourself
4.0
I am enjoying using the software and finding it helpful completing my VAT forms, I wish you could tab along though from column to column rather than use the space bar. It's a good piece of software though.
Anonymous Customer
5.0
The tools were pretty easy to use and… The tools were pretty easy to use and overall I found editing my pdf document pretty simply even though I'm not too technically inclined
Monique Byfield

Get documents done
from anywhere

Create, edit, and share PDFs even on the go. The pdfFiller app equips you with every tool you need to manage documents on your mobile device. Try it now on iOS or Android!

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
2:32 4:54 Suggested clip How to Create Electronic and Digital Signature and Sign PDF and YouTubeStart of suggested client of suggested clip How to Create Electronic and Digital Signature and Sign PDF and
Draw your signature using your finger or a stylus. If you have access to a touchscreen, you can use your finger to create an electronic signature directly in your document. Upload an image of your signature. Use your cursor to draw your signature. Use your keyboard to type in your signature.
How to request a signature from Nitro Pro Open the desired document in Nitro Pro, make any required updates, then select Request a Signature from the top ribbon's Home tab. The Nitro Sign panel will open on the right and your PDF will begin uploading to Nitro Sign.
How to sign documents with an electronic signature. Click review and sign link in email. Click prompt in document. Create electronic signature. Select signature option. Sign document. Finalize signature. Send.
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.
To add a digital signature to a PDF in Acrobat, users can take the following steps: Open the PDF document in Adobe Acrobat. Click on the Tools tab in the top menu bar and select Fill & Sign. Click Sign Yourself > Add Signature. Drag and resize the signature so it appropriately fits in the document.
How to Add a Signature to a PDF without Adobe on a PC Launch WPS PDF Editor. Click open to open desired file. Upload specific file. Select Comment the Add signature. On the POP-UP Box, add name or signature. Draw a signature or write it down. Click below as shown by the arrow. Select PDF Signature.
How to sign a PDF form with a Digital ID. Tip: To sign this PDF, you will need to open the file using Adobe Acrobat XI or Adobe Acrobat Pro DC. Click on the designated signature field, with a pink flag on the left and outlined in red. • Use a Signature Creation Device. Select “Create a new Digital ID.” • Save to File.
Join 64+ million people using paperless workflows to drive productivity and cut costs