Last updated on
Jan 16, 2026
PDF App - CAIQ Online For Free
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Top-rated PDF software recognized for its ease of use, powerful features, and impeccable support
Every PDF tool you need to get documents done paper-free
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.
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.
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.
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.
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.
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.
Customer trust by the numbers
64M+
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average user rating
4M
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9 min
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Join 64+ million people using paperless workflows to drive productivity and cut costs
Why choose our PDF solution?
Cloud-native PDF editor
Access powerful PDF tools, as well as your documents and templates, from anywhere. No installation needed.
Top-rated for ease of use
Create, edit, and fill out PDF documents faster with an intuitive UI that only takes minutes to master.
Industry-leading customer service
Enjoy peace of mind with an award-winning customer support team always within reach.
What our customers say about pdfFiller
See for yourself by reading reviews on the most popular resources:
It was really easy to use the very first time I used it. It is also cloud based so if I need to use it on a different computer, all I have to do is log in on that computer.
2015-07-27
I was desperately trying to edit a pdf copy of the P&S and we could not convert it to a Word document. Finding your website where I could make edits to the form, made my life a whole lot easier. However, I work for a law firm and we normally do not have to do these types of documents. So I am afraid I will have to cancel once the document is finalized. At least, I will keep your website as a place to go to if there is a future need. Could you please cancel my membership after the 30 days I already paid? Thank you.
2016-06-16
This program is a wonderful tool for those in need of completing documents with step by step instructions & returning later if need be. I appreciate those who assist with making this free program. It is a real Blessing also to those such as myself who cannot afford an attorney with knowing that forms are up to date & accurate. Thank you
2018-10-01
All of my experiences by way of the help line has been professional and satisfying. The Reps are all pleasant and extremely helpful. I am a very satisfied customer, Thank you!
2019-11-03
What do you like best?
PDFfiller is a very easy to use software in which I can easily edit the documents in PDF format. This tool saves every document in the cloud, so wherever you go, your documents are always with you. It also has feature to sign the documents and also making the templates is an easy job.
What do you dislike?
PDFfiller takes too much time when it comes to adding a file to edit it, it takes so much time to open the file. Also the price is a bit high as compared to the number of features provided by it.
Recommendations to others considering the product:
As PDFfiller is a nice way to manage the documents in the industry, it is recommended by me.
What problems are you solving with the product? What benefits have you realized?
PDFfiller is really a good app helping me in my industry for managing and editing the documents. I also use this tool when I have to send documents to have signature on it and it does great work. Using this tool has increased my efficiency of doing work.
PDFfiller is a very easy to use software in which I can easily edit the documents in PDF format. This tool saves every document in the cloud, so wherever you go, your documents are always with you. It also has feature to sign the documents and also making the templates is an easy job.
What do you dislike?
PDFfiller takes too much time when it comes to adding a file to edit it, it takes so much time to open the file. Also the price is a bit high as compared to the number of features provided by it.
Recommendations to others considering the product:
As PDFfiller is a nice way to manage the documents in the industry, it is recommended by me.
What problems are you solving with the product? What benefits have you realized?
PDFfiller is really a good app helping me in my industry for managing and editing the documents. I also use this tool when I have to send documents to have signature on it and it does great work. Using this tool has increased my efficiency of doing work.
2019-08-16
the features are good, but the interfaces are a bit clunky.
For example creating document sub folders wasn't as intuitive as other applications. Additionally there are some documents I would like to move to Trash, but once it been sent out for E-sign it appears it can't be trashed, so I had to move them to a folder.
2024-01-16
É a primeira vez que estou aqui preciso deste documento para publicar o meu e-book. Ainda tenho muito que aprender sobre as ferramentas de navegação. Afinal estou aprendendo. Obrigada.
2023-07-21
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.
2021-06-19
Great Customer service
Great Customer service. I didn't need the subscription and thought I had cancelled but it turns out I was charged. I contacted them about it and received an immediate response and was refunded the money.
2020-05-16
Enhance Your PDF Experience with CAIQ Feature
The CAIQ feature in our PDF app transforms how you manage and interact with documents. With a focus on clarity and usability, this feature addresses the challenges many users face when handling complex documents. You can simplify your workflow and ensure you always have the tools you need at your fingertips.
Key Features of CAIQ
Customizable document templates for various needs
Integrated analysis tools for quick data extraction
User-friendly interface for effortless navigation
Support for various file types for versatile use
Secure sharing options to protect sensitive information
Potential Use Cases and Benefits
Streamline project documentation and reporting
Enhance collaboration with team members on shared files
Simplify legal and compliance document management
Facilitate academic studies with organized materials
Improve client communications with clear document presentations
By using the CAIQ feature, you can solve common problems such as document chaos and inefficient workflows. This tool empowers you to take control of your PDFs, making tasks faster and simpler. Say goodbye to confusion and hello to clarity.
#1 usability according to G2
Try the PDF solution that respects your time.