Convert PNG to PDF and Password Protect PDF for Windows 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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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 has been a life saver, because of small changes that I have to make I don't need to go and buy the 40 pack of forms, envelopes, etc. This is perfect for a small job.
Irma C
2015-04-02
IM IN THE WORST PREDICAMENT AND CANT AFFORD LEGAL HELP. THE ONLY CALMING FACTOR IS FINDING WHAT I NEED ALMOST IMMEDIATELY EVEN HARD TO FIND BRIEFS AND CASES OF SIMILAR NATURE. ALSO IVE LEARNED QUITE OF FEW THINGS WHILE SEARCHING THAT CAUGHT MY EYE, A PLETHERA OF KNOWLEDGE. I THANK YOU, YOU HAVE NO IDEA THE COMFORT IT HAS BROUGHT AND THE FEELING IVE GOTTEN BY DOING THINGS ON MY OWN. MANY PRAISES IN FUTURE ENDEAVORS.
CORY M
2017-12-28
All the features available are really useful. My Only Request is if possible get an offline editor. Overall , The Best Available Online PDF Editor.
Vishnu I
2018-08-29
What do you like best?
The ability to sign, fill out and send documents easily and quickly.
What do you dislike?
Slow start up.and slow "save as" time. That is all.
Recommendations to others considering the product:
none at this time
What problems are you solving with the product? What benefits have you realized?
Signing contracts.
Carolyn Strong
2018-12-31
IT WAS A GREAT SOFTWARE BUT I HOPE YOU… IT WAS A GREAT SOFTWARE BUT I HOPE YOU CAN HAVE PESO CURRENCY TO PURCHASE THIS PREMIUM SINCE I AM STILL AT TRIAL USE.
Adine Gray
2024-02-13
Getting started was not good. After I got the form on the screen, it was not centered on the monitor and extremely slow to go to next lines. I can't seem to print the form now that I am finished. During my attempts to complete the form, a blank square appeared in the middle of the form. I could not erase the blank square, and it drastically blotted out data that was important. When I tried to get a replacement form, it was to no avail. I finally printed the form with the blank square in the center and filled it in with a typewriter. Based on that, I didn't try to use your system any longer. In general, I was quite disaplpointed with the results.
Robert E. A
2022-04-21
Have had very limited issues with this application, and when I did have a problem the chat service was expedient and very helpful and resolving the issue
Tracis S
2022-02-17
I absolutely reccomend PDF Filler to… I absolutely reccomend PDF Filler to anyone who would like to create any type of document legal or not. I did my will and a lease with the wizard and they both came out so professional looking it was like they were prepared by an attorney. They have bill of sale receipts and anything else you can imagine needing as well. I am so glad I found this site and hope this review helps someone decide to give it a try also. I never leave reviews but felt this deserved one.
Jim
2020-08-28
Good for Most All the forms I needed were not available but the forms that were are very useful and the insides on how to fill them out was a blessing.
CYearg
2025-04-01

Convert PNG to PDF and Password Protect PDF for Windows

Transform your PNG files into secure PDFs effortlessly. Our tool not only converts images but also adds a layer of protection, ensuring your documents remain confidential. Whether you manage personal images, work materials, or sensitive information, this feature has you covered.

Key Features

Simple and fast conversion from PNG to PDF
Ability to password protect your PDFs for added security
User-friendly interface suitable for all skill levels
Batch processing for multiple files at once
Compatibility with various Windows versions

Potential Use Cases and Benefits

Share images without worry of unauthorized access
Easily archive important documents in a secure format
Present professional materials in a universally accepted file type
Prevent printing and copying of sensitive information
Keep personal photos safe from prying eyes

This tool helps you manage your files with ease. By converting PNGs to PDFs, you prepare documents for sharing and archiving. The password protection feature addresses your need for confidentiality, allowing you to work confidently and securely. Enjoy peace of mind knowing that your important files are safe.

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. If you receive a prompt, click Yes to change the security. Select Require a Password to Open the Document, then type the password in the corresponding field.

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

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