Last updated on
Jan 16, 2026
How To Add Comments To A PDF Online For Free
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Exactly what I was needing for my real estate business to take it mobile. Nothing else is exactly like it - none of the "signing" apps quite cut it. Thanks, PDF Filler!
2014-05-05
its been pretty good so far, i would like to just open and print a document and i would like it if we had a feature to skip them having to click to open at pdf filler it would just be there in thier email
2015-12-01
I really love this program - saves me SO much time because I can merge documents or remove pages, along with making changes and corrections. SO much better than rescanning documents!
2017-06-22
What do you like best?
PDFfiller is very user-friendly and has great features. We use it for fillable online registration for our group tours as well as to edit pre-existing PDFs
What do you dislike?
We make many fillable enrollment forms that are the same except for the title. Would be helpful if we could regenerate a new PDF (with the fillable areas in tact) and just change the title to make a new PDF
What problems are you solving with the product? What benefits have you realized?
Online registration, surveys
PDFfiller is very user-friendly and has great features. We use it for fillable online registration for our group tours as well as to edit pre-existing PDFs
What do you dislike?
We make many fillable enrollment forms that are the same except for the title. Would be helpful if we could regenerate a new PDF (with the fillable areas in tact) and just change the title to make a new PDF
What problems are you solving with the product? What benefits have you realized?
Online registration, surveys
2020-02-05
They have great customer service I was…
They have great customer service I was refunded when I didn’t realize i paid for a years subscription upfront and I only had to pay the first month. Very happy companies like this still exist. The file editing is easy and can be done from iPhone.
2018-06-08
Definitely Useful
As I mentioned, it makes the mailing process much more efficient.
PDFiller allows you to create and mail PDFs easily, saving you the hassle of getting an envelope, purchasing a stamp, maybe having to go to the post office, etc. For me that has been its greatest strength. The PDF customization interface isn't bad, but it's not immediately usable. It takes a little bit of time to learn how to use it effectively.
Right off the bat: I would not recommend this software to someone who isn't tech savvy or doesn't want a bit of a learning curve, for example, employers I've had in their 50s, 60s, and 70s who don't really "get" technology. The interface is fine if you just want to sign a document, but is not particularly intuitive when it comes to doing simple things like outright deleting portions of text. Too many steps.
2019-11-15
What do you like best?
I am never going to read instructions so it was great how this software is intuitive and you can begin work right away. The customer service is absolutely the best I have ever encountered. Super supportive, super polite and super efficient. Would I recommend it, duh.......1000%!!!
What do you dislike?
Absolutely nothing! And I am not a company shill, just impressed!
What problems are you solving with the product? What benefits have you realized?
Just being able to fill out pdf forms simply and easily.
2022-01-04
We use PDF Filler with SignNow for documents for clients and employees.
All seems to work very well. I did 6 documents, each several times as the requirements changed.
I updated the company logos, just erase the old ones in the PDF and Word documents.
So far, I only worked on a Fillable Signable document for clients
I used erase, and then inserted better wording.
2021-03-03
Amazing product and service
Amazing product and service. I had an issue with their billing, and it was literally resolved in 2 mins! No kidding. The product is also really useful if you have to deal with PDFs frequently.
2021-01-27
How-to Guide
How to Add Comments to a PDF:
01
Upload your document to the uploading pane on the top of the page
02
Choose the Add Comments to a PDF feature in the editor`s menu
03
Make all the needed edits to your document
04
Push “Done” orange button in the top right corner
05
Rename the document if it`s needed
06
Print, save or share the file to your computer
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How do I insert text into a PDF document?
Add new text to a PDF You can add or insert new text into a PDF using any of the fonts installed on the system. Select Tools > Edit PDF > Add Text. Open a PDF and then choose Tools > Edit PDF > Add text. Drag to define the width of the text block you want to add.
How do I add a pop-up note to a PDF?
To create a pop-up note, select on the annotation toolbar and click it on any part of the page without text. A pop-up window will appear. You can delete the pop-up note by tapping the trash bin icon. You can also move the note around by dragging it.
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