Convert PNG to PDF and Password Protect PDF for Internet Explorer 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
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Edit, manage, and save documents in your preferred format

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Convert documents with ease

Convert text documents (.docx), spreadsheets (.xlsx), images (.jpeg), and presentations (.pptx) into editable PDFs (.pdf) and vice versa.
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Start with any popular format

You can upload documents in PDF, DOC/DOCX, RTF, JPEG, PNG, and TXT formats and start editing them immediately or convert them to other formats.
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Store converted documents anywhere

Select the necessary format and download your file to your device or export it to your cloud storage. pdfFiller supports Google Drive, Box, Dropbox, and OneDrive.
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Convert documents in batches

Bundle multiple documents into a single package and convert them all in one go—no need to process files individually.
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Preview and manage pages

Review the documents you are about to convert and exclude the pages you don’t need. This way, you can compress your files without losing quality.
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Protect converted documents

Safeguard your sensitive information while converting documents. Set up a password and lock your document to prevent unauthorized access.

How to quickly convert and compress your PDF?

Upload your document

Upload a document from your device, cloud storage, email, or URL.
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Use the converter tool

Select your document and click Convert .
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Select format and destination

Decide on the file type and where you want to save the converted document—on your device or in your cloud storage.
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Manage pages and additional settings

Once everything is set, you can access advanced settings to compress a document by excluding unnecessary pages, set passwords, and select other options.
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Top-rated PDF software recognized for its ease of use, powerful features, and impeccable support
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

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:
JUST HOPE THE INSURANCE COMPANIES WILL ACCEPT THIS FORM AND PAY US. WISH IT HAD A CAPABILITY OF ALIGNING ALL LINE HORIZONTALLY SO IT DOESN'T LOOK SO HAPHAZARD
LEIGH K
2014-09-07
I found PDF Filler to be very easy to use. Filling in a form online was simple, printing was simple, and saving the completed form was simple. Excellent program.
Vanessa J
2014-11-08
So far good. It has been challenging to learn how to use this. It has taken much application and chatting with your customer service reps, who have all been awesome. I won't say it's the easiest to learn but it's easy to use (if that makes any sense). We still can't explain why my msn email blocks pdf filler or pdf filler won't send it to my msn (not sure which). It never shows up in my spam/junk filter there and your website shows it sent. My gmail emails work fine using this.
Anonymous Customer
2018-01-06
the user interaction could be a little better, for example I don't like that when I'm on the Mybox tab, once I open a file and close it I keep getting directed to the dashboard. So I have to keep clicking back to the Mybox. Otherwise, great product! :)
Anonymous Customer
2018-07-26
What do you like best?
I like the fact that it is a Swiss Army knife type tool that can do editing, signatures, electronic contract signing all in one easy to use package! I use it in several of my small businesses. It is much better in my estimation than the Adobe products......
What do you dislike?
I have not experienced any current issues.
Recommendations to others considering the product:
Get a subscription
What problems are you solving with the product? What benefits have you realized?
I used to need multiple subscriptions with Adobe and Docusign, now I just need one package - PDFFiller!
Niels Andersen
2019-05-28
What do you like best?
PDFFILLER has been one of the best platforms I’ve used in client document transmission. The price is unmatched for the services available and the HIPAA compliance seals the deal.
What do you dislike?
The only downside is how long some forms such as registration can take to complete when adding in the initial fillable fields.
What problems are you solving with the product? What benefits have you realized?
Many of my clients are throughout the country, so the ease of securely transmitting documents while maintaining HIPAA compliance is the best problem solved. I recently discovered the ability to have documents faxed digitally through the services and it’s cut down on my physical paperwork.
Karese Laguerre
2019-06-08
Highly Satisfied I found the app simple to use. I did not expect such fast human responses to queries. Impressed with the customer service and support.
Ben
2023-07-22
I am having some difficulties with the…formatting and printing I am having some difficulties with the form printing properly. The formatting does not transfer for printing to landscape and thus loses portions of text contained within the form.
Angela Schumacher
2022-06-27
I am using this program for school… I am using this program for school applications and I love the ease of downloading and making all my tests and worksheets fillable the only issue so far is that when students fill out worksheets and send to me they all come ananomously so if a student forgets name on paper I have no way to track it, it is definately the students problem but it is just a bit of a hassle.
Michelle Plotts
2020-11-25

Convert PNG to PDF and Password Protect PDF for Internet Explorer

Easily convert your PNG images to PDF format while adding a layer of security with password protection, all within Internet Explorer. This feature simplifies your document management and ensures your sensitive data remains safe.

Key Features

Convert PNG images to PDF format with a few clicks
Add password protection for enhanced security
User-friendly interface that works seamlessly in Internet Explorer
High-quality output for professional-looking documents
Batch processing capability for multiple files at once

Potential Use Cases and Benefits

Store important images in a secure PDF format
Share sensitive documents safely with password protection
Prepare presentations with a mix of PNG images and texts in PDF
Keep your artwork protected while sending it to clients or colleagues
Organize digital files by converting images into a compact and manageable PDF

This feature addresses your need for secure and efficient file management. By converting PNG to PDF, you preserve the quality of your images while making them easier to share. Password protection keeps your documents safe from unauthorized access. Experience a hassle-free way to manage your files while ensuring their security.

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
Open the PDF and choose Tools > Protect > Encrypt > Encrypt with Password.
Click the Options button at the bottom of the save dialog window that appears. At the bottom of the options window, enable to Encrypt the document with a password option and click OK. Enter the password you want to encrypt the PDF file with and then click OK.

How to Convert PNG to PDF and Password Protect PDF for Internet Explorer - video instructions

#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