Switch from Nitro to pdfFiller for a Create Field Validation 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.
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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.

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pdfFiller is proud of its massive user base and is committed to delivering the greatest possible experience and value to each customer.
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4.6/5
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Save up to 40 hours per month with paper-free processes
Make quick changes to your PDFs even while on the go
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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
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Our user reviews speak for themselves

Read more or give pdfFiller a try to experience the benefits for yourself
4.0
I love it! my only gripe is not being able to send emails with pdf's as normal attachments. I have to send a lot of PDF's to insurance companies and they complain that their systems cannot open the PDF's as sent from pdffiller so I have to take the time to download them from pdffiller, upload them to my CRM, and then attach them in emails. It would be great to be able to save that time. But other than that I am very impressed with the service.
Casey C
5.0
Easy, reliable and very effective Makes completing forms easy and professional. Easy to navigate, easy to find and upload forms and easy to send/save. the only negative thing I could say is that I would like to have the font a different size and I have been unable to fit it correctly in some spaces.
Jennifer C.

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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?
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Step 1: Load the PDF File. Open your pre-existing PDF form in PDF element, or you can choose to open an existing form template. Step 2: Recognize Form Fields Automatically. Step 3: Fill and Save the Form.
a) In Adobe Acrobat save the document and your entries by clicking on 'File', then 'Save As' and saving it to your computer. This method will allow you to save partially filled forms and return later to pick up where you left off.
How To Create a Fillable PDF Form Open Nitro PDF Pro. Click File and open your document. Click the Forms tab in the toolbar. Select the Text Field. Drag and drop to where you want the text field to be placed. Right click and select Properties to customize the field.
For Adobe Acrobat Pro DC: Save the document as a PDF. Open the document in Adobe Acrobat (Adobe Reader cannot edit PDFs). Within Acrobat, click on the Tools tab and select Prepare Form. Select a file or scan a document. Add new form fields from the top toolbar, and adjust the layout using tools in the right pane.
Heres how to make a non editable PDF with Nitro PDF Pro: Open your PDF in Nitro PDF Pro. Click Window ➙ Document Permissions (Option + ⌘ + 4) Add Owner Password. Select one of the presets from the dropdown or check permissions manually.
To add a check box field: 1. Open the PDF in Nitro Pro. 2. On the Forms ribbon, in the Form Fields group, click Check Box.
How to create fillable PDF forms with Acrobat. Open Acrobat. Select a file or scan a document. Add new form fields. To change existing text boxes or images, click Edit in the toolbar. Save your fillable PDF.
After you fill out a form, do one of the following: In the File menu, hover your mouse over Save As, and then select Flattened PDF. To save the form under a different name or to a different location, under the File menu click Save As. You can then rename the PDF and save it in a different location.
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