Annotate PDFs Online Using pdfFiller For Free

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Create & edit PDFs

Generate new PDFs from scratch or transform existing documents into reusable templates. Type anywhere on a PDF, rewrite original PDF content, insert images or graphics, redact sensitive details, and highlight important information using an intuitive online editor.
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Fill out & sign PDF forms

Say goodbye to error-prone manual hassles. Complete any PDF document electronically – even while on the go. Pre-fill multiple PDFs simultaneously or extract responses from completed forms with ease.
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Organize & convert PDFs

Add, remove, or rearrange pages inside your PDFs in seconds. Create new documents by merging or splitting PDFs. Instantly convert edited files to various formats when you download or export them.
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Collect data and approvals

Transform static documents into interactive fillable forms by dragging and dropping various types of fillable fields on your PDFs. Publish these forms on websites or share them via a direct link to capture data, collect signatures, and request payments.
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Export documents with ease

Share, email, print, fax, or download edited documents in just a few clicks. Quickly export and import documents from popular cloud storage services like Google Drive, Box, and Dropbox.
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Store documents safely

Store an unlimited number of documents and templates securely in the cloud and access them from any location or device. Add an extra level of protection to documents by locking them with a password, placing them in encrypted folders, or requesting user authentication.

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Create, edit, and fill out PDF documents faster with an intuitive UI that only takes minutes to master.

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What our customers say about pdfFiller

See for yourself by reading reviews on the most popular resources:
I was a little confused when I first began using the app, but did an online chat with their agent who walked me through what I needed to know. Therefore; I would recommend this subscription to any Commercial Insurance Agent who issues multiple Acord forms.
SUSANL M
2016-03-30
It took a few minutes to learn navigation, but once figured it out all is good. Still many features that i have only scanned thru that really look very helpful.
HAROLD R S
2017-10-27
Just started using the program but have search many times before to find an easy way to access documents occasionally needed by our business. This format fits very well and will certainly increase the productivity of office hours. much thanks, Steve Rowell ( Brooks Carpet Inc. )
Steve R
2017-12-05
There doesnt seem to be alot of "man in the street" logic to how you explain things. It seems to be written by Code cutters or IT people. Lots of simple things like , I look up how to save a document. You say : Save your document by clicking the 'Save as PDF' button in either the "MyForms" . There is NO such button only a "save as" button. Also Where is the "My Forms" page? is it named as such or .... ????Bascally though, its a great piece of software. You just have to get a REAL human being to rewrite instructions.
Frank G
2018-10-16
it took me a little to figure out some… it took me a little to figure out some things as I am not as tech savy as the younger generations but was able to navigate and get the forms filled out.
SHANNAN WRIGHT
2024-05-06
This is my first experience with online documents and I had a difficult time maneuvering through the settings. Would like more information on how to use.
Melody R
2023-08-17
Nice and Complete app Nice and Complete app, i remake a PDF previously maked in one day, in only 1 hour with a bit edits.Sorry for bad english, but i need say it.Love this app <3
Luis Alan Villagra
2021-04-20
was able to scan a documentand then… was able to scan a document and then edit to make current with my next project in terms of headers and body making additions and subtractions to the text as needed
Randall Stanton
2020-09-06
New to this software but appears to be want I needed working with the many aspects of PDF's for our website. PDF Filler offered an excellent annual rate. I am concerned a little about getting to involved with them. You see it happen often after one year with service providers the rates start increasing. Than you need to find a new service to merge your existing business with. We'll see. Overall though the company has been excellent.
Daniel S
2020-07-22

Annotate PDFs Online

Sometimes, when completing a PDF form we don’t know the exact answer to a particular question or need feedback from the document recipient. In situations like this, you can add comments to PDF documents online using very simple tools. pdfFiller's simple but powerful document editor allows you to add comments anywhere in the document. In the past, you probably had to print the form and write your comments on the margins of the paper copy. Depending on your handwriting, the form might not have been very tidy and pleasant to look at. Now there is a far easier way to add comments to a PDF online and remove them when they are no longer needed. You can simply use pdfFiller’s editor to add comments to your PDF documents! To get started, you can upload a form to your account or open a document that’s already there. There are two ways to add your comments to a PDF document: text boxes and sticky notes. Select the Text Box tool
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in the main toolbar, click where you want to place the box and type your comment. To resize the text box, drag its corners or edges. Change the font and its size by choosing from the drop-down lists.
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You can underline, italicize or make your text bold using the respective tools.
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Change position of the text using the vertical and horizontal alignment tools.
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To change the color of your text, click the text color box and select the color you want.
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To change the background color, click the Background icon and select the color from the palette.
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To link the text box to a web page, click the Hyperlink button.
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In the dialog window that will open next, type the URL of the web page, then click Save.
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To delete the text box, click the trash can icon above it. To add a sticky note, select its icon
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in the main toolbar, click where you want to place the note and type your comment. To resize the sticky note, drag its corners or edges. You can format text the same way as you format it in text boxes. To change the color of a sticky note, click the Box icon and select the color from the palette.
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To learn more about how to add comments to PDFs online, please watch the following videos:
If you like being able to add comments to PDF documents, you might be interested in a lot of other great features that pdfFiller has to offer. Some of these include highlighting, blacking out or erasing text, drawing lines and arrows, and adding pictures. Check out these tutorials to see the other great things that pdfFiller can do for you!

Unlock the Power of Annotate PDFs Online Using pdfFiller

Are you tired of wasting time printing out PDFs just to annotate them by hand? Say goodbye to those days with pdfFiller's Annotate PDFs Online feature.

Key Features:

Effortlessly annotate PDFs directly in your web browser
Add comments, sticky notes, highlighting, and more with just a few clicks
Easily collaborate with others by sharing annotated PDFs online

Potential Use Cases and Benefits:

Streamline feedback and approval processes for documents
Improve communication and collaboration among team members
Save time and resources by eliminating the need for printing and scanning

With pdfFiller's Annotate PDFs Online feature, you can revolutionize the way you work with PDFs. Say goodbye to manual annotations and hello to a more efficient, effective way of collaborating and sharing feedback. Try it today and experience the difference for yourself!

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!

How to Annotate PDFs Online Using pdfFiller

Annotating PDFs online using pdfFiller is a simple and efficient way to add comments, highlights, and other annotations to your PDF documents. Follow these step-by-step instructions to get started:

01
Access the pdfFiller website or open the pdfFiller app on your device.
02
Sign in to your pdfFiller account. If you don't have an account, you can easily create one for free.
03
Upload the PDF document you want to annotate. You can either drag and drop the file into the designated area or use the 'Upload' button to browse your computer or cloud storage for the file.
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Once the PDF is uploaded, click on the 'Annotate' tab located at the top of the page.
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Choose the annotation tool you want to use from the toolbar. pdfFiller offers a variety of annotation options, including text boxes, sticky notes, highlights, underlines, and more.
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Click on the area of the PDF where you want to add the annotation. A pop-up window will appear, allowing you to customize the annotation's appearance and content.
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After customizing the annotation, click 'Save' to apply it to the PDF.
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Repeat steps 5 to 7 for any additional annotations you want to add.
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Once you have finished annotating the PDF, click on the 'Done' button to save your changes.
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You can download the annotated PDF to your device or share it with others by using the 'Save As' or 'Share' options.
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If you need to make further edits or add more annotations later, you can always access the PDF in your pdfFiller account and continue annotating from where you left off.

By following these simple steps, you can easily annotate PDFs online using pdfFiller and enhance your document collaboration and review process.

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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pdfFiller is a web-based PDF editor. With pdfFiller, you can search for, edit, store and export PDF documents online without downloading and installing any software. pdfFiller also allows you to access and modify your PDF documents from any device anytime.
pdfFiller.com supports Internet Exporter (IE), Google Chrome, and Mozilla Firefox.
No downloads needed! pdfFiller.com is web-based application that does not need any additional software. pdfFiller.com supports any browser.
Yes. pdfFiller.com allows you to edit (modify, alter, correct, change, amend, revise, redact) any document with our various tools and features. You can rearrange, rotate, and delete, the pages. You can also, add text, images, and signatures to each page.
To annotate PDF documents, upload your document to pdfFiller, or choose the document your want to annotate in “My Forms” page and click “Fill” button. Open “Draw” tab and access the editor toolbar, you can have a variety of annotation features: highlight text, add comments, underline text and insert sticky notes or arrows.
To add an annotation in PDF, upload your document to pdfFiller, or choose the document your want to annotate in “My Forms” page and click “Fill” button. You can highlight text or add comments, sticky notes or underlines in your PDF document, application form, license form, contract document or certificate file online. Open “Draw” tab and access the editor toolbar, you can have a variety of annotation features: highlight text, add comments, underline text and insert sticky notes or arrows.
Of course you can. To add an annotation in PDF, upload your document to pdfFiller, or choose the document your want to annotate in “My Forms” page and click “Fill” button. You can highlight text or add comments, sticky notes or underlines in your PDF document, application form, license form, contract document or certificate file online. Open “Draw” tab and access the editor toolbar, you can have a variety of annotation features: highlight text, add comments, underline text and insert sticky notes or arrows.
To add an annotation in PDF, upload your forms to pdfFiller, or choose the form your want to annotate in “My Forms” page and click “Fill” button. You can highlight text or add comments, sticky notes or underlines in your PDF application, license or certificate form. Open “Draw” tab and access the editor toolbar, you can have a variety of annotation features: highlight text, add comments, underline text and insert sticky notes or arrows.
You can annotate PDF documents online using pdfFiller. Upload your contracts to pdfFiller, or choose the contract your want to annotate in “My Forms” page and click “Fill” button. You can highlight text or add comments, sticky notes or underlines in your PDF contracts. Open “Draw” tab and access the editor toolbar, you can have a variety of annotation features: highlight text, add comments, underline text and insert sticky notes or arrows. No downloads or installation needed. You can work on annotating your PDFs with pdfFiller's cloud technology and web-based service using any device from anywhere.
To write on a document, click anywhere on the document and begin typing.
Yes. Just use “Enter” to create a line break. You can also paste large chunks of text and use Enter to restructure the lines.
To edit font settings, begin by clicking on the “Font” button. You can then change the font type, adjust the size and color. Furthermore, you can also, modify text in to bold, underline, and italics.

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Best Meets Requirements- Summer 2025