Última actualização em
Jan 16, 2026
It only takes a few clicks to Password Protect PDF in Microsoft’s mobile OS Grátis
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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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What our customers say about pdfFiller
See for yourself by reading reviews on the most popular resources:
I am only done with one of two multi paged forms.I was very thankful to be able to fill out some very long forms with a computer rather than free hand.
2014-06-30
like the program overall. It took me longer than I anticipated to learn the navigation. Must have taken me like 2 hours just to find the forms catalog on the main screen.
2017-03-15
I love it for the most part. Just wish I could send a document to a person without knowing their email (ex. directly to their Facebook account) with the ability to view and sign not edit the document. Other than that, it's been great!
2019-09-25
The website said there will be no charge for 30 days but my card got charged 1 dollar. This is clear misleading attitude. I did not find half a star to give.
2019-10-25
What do you like best?
It works. Easy to use platform. I've subscribed for several years and they continue to make improvements. I tried docusign and this was just as good.
What do you dislike?
I don't like that it won't link up with business accounts on OneDrive so I can't store my files on OneDrive. Really would be nice to have them fix that! Also for some weird reason, the system only can connect with personal accounts. Sometimes, it's not easy to find my documents. Finally, the plug-in for Chrome doesn't always work well. Usually, it's just better to go into the app itself.
Recommendations to others considering the product:
Compare the functionality you need to what it offers. I suspect you'll find it's sufficient.
What problems are you solving with the product? What benefits have you realized?
Send out paperwork for signatures and fill out paperwork online instead of printing, signing, and scanning it.
It works. Easy to use platform. I've subscribed for several years and they continue to make improvements. I tried docusign and this was just as good.
What do you dislike?
I don't like that it won't link up with business accounts on OneDrive so I can't store my files on OneDrive. Really would be nice to have them fix that! Also for some weird reason, the system only can connect with personal accounts. Sometimes, it's not easy to find my documents. Finally, the plug-in for Chrome doesn't always work well. Usually, it's just better to go into the app itself.
Recommendations to others considering the product:
Compare the functionality you need to what it offers. I suspect you'll find it's sufficient.
What problems are you solving with the product? What benefits have you realized?
Send out paperwork for signatures and fill out paperwork online instead of printing, signing, and scanning it.
2019-10-07
The PDF filler worked beautifully and Loved it.
The PDF filler worked beautifully and I like it. It was exceptional. But rather costly I could not afford it at this time. But I had no problems achieving what I did with documents I wanted to change.
2020-02-03
PDFfiller exceeded my expectations
PDFfiller exceeded my expectations. It's user friendly and makes dealing with PDF products a breeze. Anna in Customer Service was a pleasure to deal with when I had a Billing issue (caused by me). I would definitely recommend PDFfiller to anyone.B. Revelle
2019-05-07
I have got to say during this time of a…
I have got to say during this time of a COVID-19 crisis, it's nice to have a service like this where I can just get the pdf's filled out and signed. It also makes for the reader on the other end to see it more clearly. I am an extremely happy customer and will continue to be for as long as COVID is here anyway.
2020-11-13
User friendly and functional as well as stable
Just trying this out , and it is one of the best PDF editors I have ever used.User friendly and functional as well as stable. A very valuable tool.
2020-05-20
Password Protect PDF for Microsoft Mobile OS
Keep your documents safe with Password Protect PDF on Microsoft's mobile OS. This feature allows you to secure your sensitive files, providing peace of mind while using your device.
Key Features
Set a strong password to restrict access to your PDF files
Easy integration with Microsoft mobile applications
User-friendly interface for quick setup
Support for multiple PDF formats
Ability to remove passwords when needed
Use Cases and Benefits
Protect confidential business documents from unauthorized access
Secure personal information when sharing files
Enable secure document transfers between colleagues
Maintain compliance with data protection regulations
Safeguard important files on public devices
Password Protect PDF solves your security concerns by allowing you to take control of who sees your documents. Whether you need to protect work files or personal data, this feature enhances your privacy and security effortlessly.
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How to password protect PDF Files on iPhone or iPad? iOS App Weekly
Once the PDF file opens in Documents app, tap on the Menu button (three dots) in the top right corner to bring up menu at the lower section of your iPhone screen. Choose Set Password. Then type in the same password twice. Finally, hit the Set button to confirm and encrypt your PDF file on iPhone or iPad.
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