Switch from Nitro to pdfFiller for a Comment on PDF Documents 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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Last updated on Jan 24, 2025

Discover the simplicity of processing PDFs online

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Upload your document in seconds
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Fill out, edit, or eSign your PDF hassle-free
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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.

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How to Comment on a PDF

pdfFiller makes it easy to comment any document online. You can type anywhere, highlight, redact or erase words and phrases, add signatures, images, sticky notes or customized watermarks without any coding.

To get started, go to MY DOCS and select a file to be opened in the pdfFiller editor.

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Across the top you’ll see a PDF toolbar. Click on a tool icon to select it, then mouse over the area on your file where you want to place it and click again. Click on the Text button to start typing or insert your sentences by dragging the text box. You can change the font type, text size or color by clicking the corresponding icons in the toolbar. Make your words bold, italic or underline it using the B, I and U icons respectively.

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pdfFiller’s online editor allows you to quickly sign your form. Press the Sign button and choose how you’d like to add your signature. You can draw it with your finger or mouse, upload it from your computer or capture it with a smartphone or webcam.

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Select the corresponding option on the Edit tab to highlight or erase the phrases. To obscure words or phrases choose the blackout tool.

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Use the tab on the right to number pages, add a watermark or view the revision history by clicking the VERSIONS tab.

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When you’ve finished editing your file, click DONE. Now you can email, print or save your file.

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Forget about the hassle of losing, editing, and redacting paper documents. With pdfFiller you can edit documents online to create legible, professional ­looking files in a matter of minutes. Experience full pdfFiller functionality that allows you to manage any document online anytime from anywhere. Check out these tutorials to learn how to create templates, make copies, and convert files to Word, Excel or PowerPoint files.

How to Comment a PDF?

01
To comment a PDF online, upload a file to your account or choose an existing form.
02
Choose the 'Text' button in the 'Edit' tab and start typing. You can place text by moving the text box.
03
Click the 'Signature' or the 'Picture' button to sign your document or insert an image. You can also add sticky notes, comments or text boxes to any PDF file.
04
Click the 'Tools' tab and edit the PDF by highlighting, redacting or erasing any text or image.
05
To comment your PDF further, click the 'Watermark' and the 'Versions' tabs on the right or the 'Pages' tab on the left.
06
When you're done with editing, click the 'Done' button and email, print or save your document.

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

Video Review on How to Comment on PDF Documents - Nitro

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4.0
Simplified accuracy ! pdfFiller simplified and shortened the length of time; when I needed to complete filling out pertinent documents. My first experience with pdfFiller was when I had to do taxes. All the technical difficulties with filling out tax documents no longer existed. There are no Cons to specify, except my fears that this app is a "too good to be true" app. If you knew that before this app came along, PDFs were untouchable and un-editable.
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Hi my name is ********* *******, I had a problem with a subscription I was transferred to **** he helped me solve the problem, he is very knowledgeable, professional, and ****************** thanks again buddy.
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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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Choose Tools > Text Tool. Choose Notes > Text Note. Drag in the document until the note is located where you want and has the size you want. To enter text, double-click the note.
Choose Tools > Text Tool. Choose Notes > Text Note. Drag in the document until the note is located where you want and has the size you want. To enter text, double-click the note.
Switch from view to edit mode: You can switch from document view mode to edit mode to add comments. Click the Options menu () in the toolbar, and then click Edit > Add Comments.
To add a note: In the Review tab, in the Markup panel, click Add Note. Click on the page where you wish to place the note, and a yellow speech-bubble appears. The new note automatically opens a pop-up note. Click inside the pop-up note to enter your text.
Create Sticky Notes for your PDF document. Open your document in the Acrobat online PDF editor. Click the Add Comment icon and select whether you'd like the comment to be visible as text on the document or whether you want it to show up as a comment icon. Make your comment and repeat throughout the document.
Tool choose where you'd like it to be placed. And enter the comment. To view a summary of yourMoreTool choose where you'd like it to be placed. And enter the comment. To view a summary of your comments open the comments pane on the bottom left corner of the window.
With your cursor, select individual words or a block of text to mark-up. Double-click the new mark-up to add comments to the annotation: Press the “X” at the top of the pop-up note to close it.
On the Review tab, in the Review Tools group, click the arrow under Drawing , and select Pencil. Click and drag the pointer on the page to create a drawing.
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