Last updated on
Jan 22, 2026
Docx Tool - Certify Online For Free
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Up to 100 MB for PDF and up to 25 MB for DOC, DOCX, RTF, PPT, PPTX, JPEG, PNG, JFIF, XLS, XLSX or TXT
Note: Integration described on this webpage may temporarily not be available.
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Discover the simplicity of processing PDFs online
Upload your document in seconds
Fill out, edit, or eSign your PDF hassle-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+
users worldwide
4.6/5
average user rating
4M
PDFs edited per month
9 min
average to create and edit a PDF
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:
I find it so much easier to edit documents, and save for later. Being able to share and easily find them. As well as changing page lay outs for presentations too.
2018-09-09
What do you like best?
I love the program as a homeless case manager, I can review information with clients, send to them for review, and signature from my office
What do you dislike?
It needs a desktop application for easier access vs going to the website all the time.
What problems are you solving with the product? What benefits have you realized?
decreasing my travel, having access to documents when I need them in the PDF website, and access to cloud networks
I love the program as a homeless case manager, I can review information with clients, send to them for review, and signature from my office
What do you dislike?
It needs a desktop application for easier access vs going to the website all the time.
What problems are you solving with the product? What benefits have you realized?
decreasing my travel, having access to documents when I need them in the PDF website, and access to cloud networks
2019-05-28
A step closer to paperless office
NO more need to buy papers, printer, fax and signs. It is the blessing to edit a PDF file with full access from anywhere. Just drag, drop, edit and share.
PDF Filler is a magic. Just Drag and Drop document to edit, share and download pdf file. One can also upload a URL of the of the doc. It supports excel, word and powerpoint.
Marketing of a free service like this can save dozens of papers and lead us to an environment-friendly society.
2018-06-30
Easy to use with all the features we need for a pdf
The way you allow to edit document is really great. Adding pages and adding images to pages works really well. Finally some application that has almost all the features we need to create or edit pdf.
2024-07-19
Great Customer Service
Very helpful. Excellent app. I had to cancel due to funding and Sarah helped me immediately. Excellent customer service. Thank you!
2020-10-18
Good Quality
My experience with PDFfiller is old, when I still needed to install the software. Nowadays I don't use it anymore, but in my college days it was very useful.
The conversion of documents on the PDFfiller website is quite simple and does not change the structure of the actual document, which can be up to 150 pages. For most files, this is a good size.
I find PDFfiller useful only for those who work with many documents to pay a monthly fee that is not high, but it is still something to consider.
2020-10-06
Docx Tool - Certify Feature
The Certify feature in Docx Tool provides a simple and efficient way to ensure the integrity and authenticity of your documents. Whether you need to verify contracts, agreements, or official reports, Certify helps you establish trust and compliance easily.
Key Features
Digital certification to verify document authenticity
User-friendly interface for easy navigation
Secure storage of certified documents
Customizable certificates to meet your needs
Instant notifications of certification status
Potential Use Cases and Benefits
Perfect for businesses needing to secure contracts and agreements
Ideal for educational institutions verifying student records
Useful for legal professionals needing certified documents
Helps nonprofit organizations certify grant applications
Aids freelancers in providing certified work documents to clients
By using the Certify feature, you can solve the problem of document authenticity. It eliminates doubts and enhances security, allowing you to focus on what truly matters—your work. Certify gives you confidence in your documents, ensuring they meet all necessary standards.
#1 usability according to G2
Try the PDF solution that respects your time.