Switch from Nitro to pdfFiller for a Add Formula Field Button to Document for Signature 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
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

Upload your document in seconds

Fill out, edit, or eSign your PDF hassle-free

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

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

Save reusable templates
Reclaim working hours by generating new documents with reusable pre-made templates.

Get eSignatures done
Forget about printing and mailing documents for signature. Sign your PDFs or request signatures in a few clicks.

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

Securely store documents
Keep all your documents in one place without exposing your sensitive data.

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 withan 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

G2 recognizes pdfFiller as one of the best tools to power your paperless office
4.6/5
— from 710 reviews
Our user reviews speak for themselves
Read more or give pdfFiller a try to experience the benefits for yourself
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
How do I sign a DSC in PDF?
Open your PDF document.
Right-click in the PDF document where you want to add the Digital signature.
Select Sign Document from the right-click menu.
Select Digital Signature.
How to validate signature in Nitro PDF?
Here are the steps on how to validate a signature: Open the PDF file using Nitro Pro. Access the Signature Pane. Right-click on the signature and choose 'Validate Signature'
How do I request a signature in Nitro Pro?
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 create a stamp in Nitro Pro?
To Create a Stamp: On the Review tab, click the arrow below Stamp. Select Manage Stamps. Select from the following options: Select Create New Stamp. In the Stamp title field, enter a name to identify your stamp. In the Content section, do one of the following: Specify other options for the appearance and size of the stamp.
How do I make a stamp signature?
How to Create a Signature Stamp Make sure to sign your name in black ink with a crisp, clear pen. Please do not sign with a felt tip marker. Do not make any stray marks as they will all be included as part of the signature stamp. Sign on plain, unlined paper.
How do I sign a digital signature in Nitro PDF?
How To Sign Documents with Nitro PDF Pro Open your document in Nitro PDF Pro. On the main Home tab choose the QuickSign option and select Create New Signature. Choose from one of the four secure signing methods: Click Ok, navigate to the section where you want to place your signature and left click.
How to create a signature stamp in Nitro Pro?
Use. Click ok once you're happy with the signature. And navigate to the section of the documentMoreUse. Click ok once you're happy with the signature. And navigate to the section of the document where you want to place your signature. And left. Click.
How do I create a signature box in Nitro Pro?
How To Sign Documents with Nitro PDF Pro Open your document in Nitro PDF Pro. On the main Home tab choose the QuickSign option and select Create New Signature. Choose from one of the four secure signing methods: Click Ok, navigate to the section where you want to place your signature and left click.
Join 64+ million people using paperless workflows to drive productivity and cut costs