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Jan 22, 2026
PDF Software - Certify Online Gratis
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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
Download, export, or share your edited file instantly
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:
VERY CONVENIENT!!!! I had something urgent to fill out and I couldn't fill out the form and this helped me to fill out and E sign as well as send it by email. Thankful I found the site. Needs to be advertised more. I could have used this years ago.
2014-07-25
It is a wonderful program to use now that I have figured out what today. It is very easy to move around in the program too. Thank you for the intro videos too!
2015-06-22
Accidently joined the annual membership and they promply refunded my money. Also it is very easy to use, well organized just like a pdf email box with several options available.
2016-08-31
It meets my needs very well. If I could get my own fax number for less than $10/month I would add that. As it is now, I have a fax separate from this but only pay $8/month so will keep and use separately. Disappointed it was so much for the add on. Also, for the edit option. Many things to do but all as add ons. For now, I like what I can do, though.
2016-12-14
Works for everything
Overall I am a fan of the software. I know not everything is supposed to work 100% of the time and things will happen so that doesn't deter me from using the software or recommending it someone else.
I liked the ability to install and go, this software worked for getting documents in, filling them out, and getting them back out. I like the options and the ability to even save some data.
Sometimes it has crashed or felt a little clunky. I am unsure if it is saving the data but during the saving process it has crashed on me and that is something i wasn't as much a fan of.
2019-07-16
I find this software to exceed my…
I find this software to exceed my expectations. I especially love the library. That is the main reason I bought in.
2022-03-20
What do you like best?
The ability to add a template, and utilize the template instead of creating a new document every time.
What do you dislike?
The interface of PDF isn't as modernized as some other products are.
What problems are you solving with the product? What benefits have you realized?
The convenience of completing paperwork electronically for our clients.
2021-11-10
Kara did an excellent job
Kara did an excellent job. She was patient, kind and able to help me resolve the problem. Give her a raise so she can take a vacation to sunny Myrtle Beach.
2021-06-17
Great app!!
I like this app very much it makes keeping track of my medications, allergies, surgeries and other medical information easier and all in one place. I can just print what I need to take with me when I am going to see a new doctor for the first time. I recommend this product.
2021-01-23
Streamline Your Document Approval with Certify Feature
The Certify feature in our PDF software simplifies document signing and approval processes. Whether you are in a corporate environment, a legal setting, or a home office, this tool enhances your workflow by making it easy to certify important documents.
Key Features of the Certify Feature
E-signature capability for quick approvals
Compliance with industry standards for secure signing
Easy integration with existing workflows
User-friendly interface for seamless navigation
Ability to track and manage certifications efficiently
Potential Use Cases and Benefits
Speed up contract approvals in business settings
Facilitate legal document certifications
Enhance project management with quick stakeholder sign-offs
Improve remote collaboration by allowing team members to certify documents from anywhere
Reduce paperwork and physical storage needs
By using the Certify feature, you eliminate delays associated with traditional signing methods. This solution not only minimizes the risk of lost documents but also enhances security through its built-in tracking and authentication processes. Say goodbye to complicated approvals and hello to a more efficient way of certifying your vital documents.
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?
Contact Support
What is PDF certificate?
Certificate security A certificate stores the public key component of a digital ID. For more information about digital IDs, see Digital IDs. When you secure a PDF using a certificate, you specify the recipients and define the file access level for each recipient or group.
How do I remove security certificate from PDF?
Select Preferences > Signatures. In Identities & Trusted Certificates, and click More.
Select the certificate, and click Remove ID.
Which security is used for PDF document?
PDF security & methods used to secure PDF documents While PDF encryption is used to secure PDF documents, so they can be securely sent to others, you may need to enforce other controls over the use of your documents to prevent authorized users using documents inappropriately.
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