Home
Functionality index

Switch from Nitro to pdfFiller for a Online PDF Toolbar 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

Last updated on Jan 16, 2026

Try these PDF tools

Edit PDF

Quickly edit and annotate PDFs online.

Start now

Sign

eSign documents from anywhere.

Start now

Request signatures

Send a document for eSignature.

Start now

Share

Instantly send PDFs for review and editing.

Start now

Find forms online

Browse the online library of forms.

Merge

Combine multiple PDFs into one.

Start now

Rearrange

Rearrange pages in a PDF document.

Start now

Exchange comments and edit PDFs collaboratively.

Compress

Compress PDFs to reduce their size.

Start now

Convert

Convert PDFs into Word, Excel, JPG, or PPT files and vice versa.

Start now

Create from scratch

Start with a blank page.

Start now

Edit DOC

Edit Word documents.

Start now

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

Start free trial

Decoration

G2 recognizes pdfFiller as one of the best tools to power your paperless office

4.6/5

— from 710 reviews

How to Install PDF Toolbar

Use all of pdfFiller's powerful editing tools. Choose the Text button from the PDF toolbar and start typing. If you want to spellcheck the information you’ve added, move the Spelling slider to the right. Move text by dragging the text box. You can change the font type, color or size by clicking the corresponding dropdown in the toolbar. To underline your text, or to make it bold or italic, use the U, B and I icons.

To delete text, just click the trash can icon in the mini toolbar. In the Edit tab, click the respective buttons to highlight, blackout or erase any text or image.

Click the Sign or Picture button to sign your document or insert an image or company logo.

You can also add sticky notes, text boxes, fillable fields, checkboxes, graphs and diagrams. To edit your document further, click the Pages tab on the left or the Add Watermark and Versions tabs on the right.

When you have finished editing your document, click the Done button in the top right corner. Watch the video to learn more about how to install PDF Toolbar:

How do I Install PDF Toolbar?

01

Open your document in the pdfFiller editor

02

Click the Text button, if you need to add text to your PDF

03

Click the Sign or Picture button to add a signature to your document or insert an image

04

Click the Erase, Blackout and Highlight buttons to edit your document

05

Use all other buttons in the PDF toolbar to add sticky notes, text boxes, fillable fields, checkboxes, graphs and diagrams

06

Click the Done button to save your changes

pdfFiller is different from and not affiliated with Nitro. With further questions about Nitro products please contact Nitro directly.

Our user reviews speak for themselves

Read more or give pdfFiller a try to experience the benefits for yourself

5.0

Overall a very positive experience. I think customers should be given the option of a low-cost limited one-time use of the site with full features, rather than forcing customers to subscribe for a full month or year with automatic renewal.

Anonymous Customer

5.0

So far so good, makes filling out legal forms quick and able to be filed electronically. I will update as we go as to how user friendly the services are.

Cindy

5.0

I was filling out a stubby pencil application, and thought there has to be a better way. Now I'm happily dragging and dropping scanned files into PDF filler and like magic I have an automated workable document, it's fantastic.

Bill

5.0

This application saves me significant amounts of valuable time in the clinic The most desirable feature of this application is the time that it saves on recurrent clinical and axillary paperwork for my clients The most tedious aspect is searching for past documents which dont seem to search by just part of the title

Kelly D.

5.0

Excellent support by the Support team… Excellent support by the pdf filer Support team to check the contents of the issue raised and solve it amicably Highly appreciate the good work done Regards Mohan Nair

Mohan Nair

5.0

Great Customer Service I signed up for the free trial and ended up not needing to utilize their services. I had thought I had cancelled it, but for some reason it never went through, so I ended up getting charged for the full year. I contacted their live chat and a representative named Anna was very helpful and got the refund processed right away. Thank you for being gracious and so helpful! I very much appreciate this company's customer service. I will definitely use them in the future! :)

Morgan

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!

Join 64+ million people using paperless workflows to drive productivity and cut costs

Start free trial

102,429 Reviews