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

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Create and edit PDFs

Create and edit PDFs

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

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

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

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How to Add Comments in PDF

Comments are a very handy and powerful annotation tool. For instance, you can use them when you edit a PDF document with your colleagues.

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To add a comment, click the Arrow icon in the main toolbar. The comment toolbar will appear under the editing tools. Select the comment you need, then click anywhere to create the start point and drag to where you want to create the end point. Release the mouse button and select OK. To change the comment’s color, click on the color square and choose the color from the drop-down. Use the slider to change the comment’s thickness.

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To reverse a comment, select it and click the icon of the comment with the opposite direction. To convert a simple comment into a two-headed comment, click the icon of the two-headed arrow. To change position of the start or end point, just drag it. To delete the comment, press the trash can icon above it.

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To learn more about how to add comments in PDF documents online, please watch the following video:

If you like being able to add comments in PDF documents, you may be interested in other great features that pdfFiller has to offer. Some of these include highlighting, blacking out or erasing text, drawing lines, and adding sticky notes and pictures. Check out these tutorials to see the other great things that pdfFiller can do for you!

01
To add comments in a PDF, upload your PDF document using pdfFiller's uploader.
02
Choose the 'Arrow' button in the 'Tools' tab and get an arrow. You can drag and move the arrow anywhere in your document.
03
You can also click the 'Tools' tab and highlight, redact or erase text and images in your PDF.
04
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.

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5.0
Happy with PDFfiller! PDFfiller makes the documents that individuals within my company need to use frequently, more readily available, an improved option to frequently having to make copies before working with clients. I really appreciate the functionality and ease of use for the product. The fact that it is possible to create a fillable PDF, to be used by multiple people or times. Uploading documents is extremely easy and the layout on the website makes all features easy to find. My absolute favorite thing is that you can sign things by singing from your phone, or saving a signature that you already have saved. My only frustration is that if you download a fillable PDF, even when saving it will a different name, you can't print it with the content. I have found that I have to import the document and then print directly from the website, yet when uploaded the document makes the typed font smaller. Another tricky thing is that if you want to create a fillable PDF you must meticulously go through the document to check and highlight anything that you want to be able to fill information.
Verified Reviewer
5.0
What do you like best? The features and tools of PDF filler editor are really perfect. I can describe it as a strongest online PDF editor in comparison with another services. With this service you dont need any expensive PDF editor softwares like Adobe Acrobat on your own system. What do you dislike? Some fonts and non-Latin languages not supported. What problems are you solving with the product? What benefits have you realized? I have used it for filling official forms and I am satisfied.
Ehsan Bagherzadeh

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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.
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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.
Click on the “Markup” icon and select the annotation tool you want to use. 3. Simply click and drag on the PDF to add your annotation.
Adding comments using the Add Comments tool Click the options menu (), and choose Add Comments. Select a file you want to comment, and click Add Comments in the right pane.
Nitro pro gives you the ability to place comments on your pdf document in various ways and view allMoreNitro pro gives you the ability to place comments on your pdf document in various ways and view all comments in your pdf. File from a single location. Open your pdf document select the review tab on
That you can't add sticky notes to a PDF may be because the PDF document is encrypted and set permissions, or the Review & Comment tools are not enabled. You can go to Tool > Protect to check.
Directly in Chrome. And there are a couple things. This little icon up here tells me that you canMoreDirectly in Chrome. And there are a couple things. This little icon up here tells me that you can add a comment to it. So I'm going to scroll down and the way you add a comment is you have to select a
Follow these easy steps to edit a PDF online by adding comments: Choose a PDF to edit by clicking the Select a file button above or drag and drop a file into the drop zone. Once Acrobat uploads the file, sign in to add your comments. Use the toolbar to add text, sticky notes, highlights, drawings and more.
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