Convert PNG to PDF and Encrypt PDF for Desktop 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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Last updated on
Sep 22, 2025
Edit, manage, and save documents in your preferred format
Convert documents with ease
Convert text documents (.docx), spreadsheets (.xlsx), images (.jpeg), and presentations (.pptx) into editable PDFs (.pdf) and vice versa.
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.
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.
Convert documents in batches
Bundle multiple documents into a single package and convert them all in one go—no need to process files individually.
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.
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.
Use the converter tool
Select your document and click Convert
.
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.
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.
Top-rated PDF software recognized for its ease of use, powerful features, and impeccable support
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
I think the learning curve is a little steep. Also, at times the app seems a little counter-intuitive. It's not always easy to find forms you have worked on previously.
Tighe
2019-10-27
Maybe I haven't found it, but it would help if there was a way to stop the fillable areas from snapping to each other. I had to figure out work-arounds for a lot of them.
Anonymous Customer
2020-01-06
What do you like best?
This app has been immensely useful. There have been times when I am not at my desk and needed to fill out some forms and this app allowed to me to do so right on my phone. This is life saving productivity.
What do you dislike?
The only thing I disliked was the many screen you need to go through to finally start using it. Other than that, the app is great.
Recommendations to others considering the product:
It is a great app. It just takes a few minutes of patience to get through the screens.
What problems are you solving with the product? What benefits have you realized?
The business problems this app solves is the ability to conduct business anywhere. You are no longer constraint to your desk or an office. This allows for travel and connectivity almost anywhere.
Carlos A. Montañez
2018-10-29
Very straightforward .pdf editing
Very straightforward .pdf editing! Easy to use, not too many steps to getting my edited .pdf documents right away, speed is important for work hours.
Katheryn Amicone
2024-10-03
Gestion documentos empresarial
Satisfactoria de gran calidad una de las mejores herramientas digitales de gestión documental
La firma digital poder tener esto.en contratos de trabajo para recursos humanos y para clientes signar cada doc es vital brinda legalidad y certeza
La conversión a pdf es un tanto dificil ppderla implementar
Luis armando G.
2022-11-06
pdf filler was kinda a letdown
3/5 it was cool and yea sometimes know when to say no
I use it for specific content for signature and pdf
just didnt like the feel of the software so im moving on
Jeffrey P.
2021-09-16
I have used this program on several…
I have used this program on several occasions and it is easy to use and makes filling out forms and sending them an easy task
Robert Whittaker
2021-02-20
I apparently didn't understand the subscription options either, like other reviewers. But after seeing unexpected charges on my CC statement I contacted them and they immediately reversed the charges. Efficient, professional, no problem. I think the subscription charges/contracts could be clearer, but on the other hand I was moving pretty fast so maybe it was my error solely. Anyway, no harm no foul. The product itself worked fine. I have no comparison so all I can say is it functions and got my job done.
John W
2020-12-07
Excellent customer service and support
Excellent customer service and supportI recently needed to contact them for an issue I had and was helped by Shannen. I used their Live Support Chat, waited less than 1 minute and my problem was dealt with with in less than 5 minutes. Shannen was helpful, polite and made it easy. The fact that this took such little time, without hassle was fantastic. Excellent company to deal with!
Emma Petts
2020-05-27
Convert PNG to PDF and Encrypt PDF for Desktop
Transform your PNG images into secure PDF documents with our intuitive software. You can easily convert and encrypt your files, ensuring your data remains private and protected.
Key Features
Simple conversion from PNG to PDF
User-friendly desktop interface
Encryption options for enhanced security
Batch processing for multiple files at once
Compatible with various operating systems
Potential Use Cases and Benefits
Protect sensitive documents for personal or business use
Prepare presentations with professional-looking PDFs
Archive important images in a secure format
Share files safely via email or cloud services
Reduce file size for easier storage and transfer
This software addresses your need for both conversion and security. By combining these features, you can manage your image files more effectively while keeping your information safe. Enjoy peace of mind knowing your documents are protected.
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.
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.
Can you turn a PNG into a PDF?
Go to the Image to PDF converter. Upload your image. We accept PNG, as well as GIF, TIFF, BMP, and JPG. Then click 'Create PDF Now'.
How do I change PNG to PDF?
Go to the Image to PDF converter.
Upload your image. We accept PNG, as well as GIF, TIFF, BMP, and JPG.
Adjust the formatting as needed. Then click 'Create PDF Now'.
Continue to modify your PDF, and/or download it to your local drive when you're done.
Is a PNG file the same as a PDF?
PNG images are ideal for web graphics, especially logos, illustrations, and graphs. They can shrink to very small file sizes when colors and elements are limited, which is another plus. PDFs keep your images in one packet, so viewers can print and save designs and booklets easily.
How do I convert a PNG to a PDF without background?
Choose “image”-”PNG format” option. Then click on “convert” button and conversion will be performed in software. Once, PDF conversion is completed, PNG files will be saved to the destination folder with a transparent background that can be reviewed later.
How to Convert PNG to PDF and Encrypt PDF for Desktop - video instructions
