Stay mobile Edit Secured PDF on Smartphone Gratuito

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Users Most Likely To Recommend - Summer 2025
Grid Leader in Small-Business - Summer 2025
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Every PDF tool you need to get documents
done paper-free

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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.
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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.
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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.
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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.
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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.
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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
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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:
This is the first time I've needed this type of aid, and I've found it to be very useful and relatively easy to use. Sorry, I'm really too swamped with work to do another survey
Robert S
2015-10-10
you have forms that are not updated. however, for a particular project- i had to recreate forms filed in 2010. you were the ONLY place, company, resource that had these non-updated forms!! yay!!
crystal k
2016-02-08
It was very good. However, I would be interested in the webinar because I have not figured out how to download a document from another site to my account as I was advised by the support person.
Reba M
2017-12-15
I use PDFfiller for so many things. Filling in documents like applications, signing documents without printing them, modifying PDF files. It has been an invaluable tool.
Heidi M
2018-12-07
Great app! I use it fill out and sign forms online. Before PDFfiller, I had to download, print, fillout and then scan completed forms to retain a digital copy.
Oliver W
2019-01-15
PDFfiller saved me significantly more than the cost of a subscription I found PDFfiller when searching for a (lease) document I needed to complete for a potential tenant. I signed up for the trial, and I will let it continue to a paid subscription. PDFfiller saved me significantly more than the cost of a one-year subscription. I'm really happy with the program, which allowed me to customize the document, and easily fill out the form.
Craig
2019-04-14
Review of PDFfiller I like this software. It makes the process of editing and filling out pdf files faster, especially when it comes to long documents. It's definitely worth trying. My only con is that sometimes the program freezes and I need to restart it.
Graziana Z.
2019-06-09
It's very easy to edit the documents… It's very easy to edit the documents and a lot of flexibility was put into thought in pdffiller and I'm very impressed.
Sulaiman Nazirul
2023-08-26
What do you like best? Really a good tool to utilize for editing and transforming the documents. What do you dislike? Erasing any content in the document is little difficult. Recommendations to others considering the product: Very good and useful product to use. What problems are you solving with the product? What benefits have you realized? we used this tool mostly for the editing and get some digitizing the document.
Administrator in Information Technology and Services
2020-08-14

Can you really Edit Secured PDF on Smartphone?

Have you ever been fed up of carrying your laptop around anywhere you go, so that you can keep working with your documents? Maybe you have lost clients because you didn’t have the ability to Edit Secured PDF on your Smartphone? Here at pdfFiller, we offer you a solution that frees you from being dependent on software that isn’t cloud based, so that you can work from any device, anywhere.

pdfFiller is the leader in online document management but it doesn't mean it’s tedious to make use of. Edit Secured PDF on Smartphone and more:

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Simplify collaboration. Highlight content or add comments for your colleagues
02
Cover sensitive data. Use the Blackout option to hide delicate information that shouldn’t be spread to third parties
03
Add new objects. Insert texts, crosses, checkmarks, images, text boxes, or simply draw on a document
04
Export content. Share samples via links, emails, messengers, or fax
05
Request additional authentication. Ask recipients to confirm their identity by taking a photo or linking social media profiles
06
Convert files. Save your records as files in PDF, Word, Excel, or PowerPoint formats
07
eSign documents. Create a legally-binding signature and send a form for signing in seconds

If you jump into pdfFiller's functionality, you can actually explore even more helpful tools and make your on-the-go document management far more productive and uncomplicated. Consider using it to avoid wasting your energy by carrying your laptop all the way around. Get everything you need for managing PDFs. Register now!

Stay Mobile Edit Secured PDF on Smartphone

You can now edit secured PDFs directly from your smartphone. This feature lets you maintain control over your documents while on the move. With it, you can easily make necessary changes without the hassle of a computer.

Key Features

Edit text and images in secured PDFs
Add annotations and comments with ease
No need to unlock the document entirely
User-friendly interface for quick navigation
Save changes seamlessly directly from your device

Potential Use Cases and Benefits

Perfect for busy professionals handling contracts or proposals on the go
Ideal for students needing to mark up research papers or class notes
Helpful for remote teams reviewing and collaborating on documents
Convenient for legal professionals managing sensitive materials while traveling
Useful in any scenario where quick edits are needed without access to a computer

This feature solves the problem of needing to edit secured PDFs while away from your desk. You can work efficiently and effectively, making necessary adjustments in real-time. With this capability, you'll enhance productivity and maintain the integrity of your documents, all from the convenience of your smartphone.

Get documents done
from anywhere

Create, edit, and share PDFs even on the go. The pdfFiller app equips you with every tool you need to manage documents on your mobile device. Try it now on iOS or Android!

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
Tap on the file to open it > enter the password to unlock the document > tap on the three-dots icon present in the top-right corner > select Change Password and tap Remove Password. This will disable the password-protection on the PDF file and the next time you try to open it, you won't require to enter the password.
Open the file with the right password. It's very easy to open password-protected PDF documents even on Android if you know the password. Any mobile PDF readers worth their salt support passwords and can unlock the files. Simply open the PDF document and enter the password when your Android device prompts you for it.
Choose “Tools” > “Protect” > “Encrypt” > “Remove Security.” Remove Security: The options vary depending on the type of password security attached to the document. If the document has a Document Open password, click “OK” to remove it from the document.

Video instructions on how to Edit Secured PDF on Smartphone

#1 usability according to G2

Try the PDF solution that respects your time.
Users Most Likely To Recommend - Summer 2025
Grid Leader in Small-Business - Summer 2025
High Performer - Summer 2025
Regional Leader - Summer 2025
Easiest To Do Business With - Summer 2025
Best Meets Requirements- Summer 2025