Convert PNG to PDF and Lock 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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Last updated on
Dec 12, 2023
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
PDFfiller was intuitively simple to use in creating an important document. I had difficulty erasing some text I accidentally superimposed onto my document and the recipient who ultimately got the PDF I created could not open it. Also disappointing was the fact that I didn't realize I had to pay a tidy subscription price until after I completed my document and tried to send it off (and save it). That all led to an initially horrible review.
But, I have to say that my experience with PDFfiller and Elie, the rep I dealt with, revised my entire experience. Not only did Elie help resolve the problems in a very timely fashion, I received a refund! PDFfiller seems dedicated to provide the user an efficient product and the customer service is the best I've seen with any internet-based business. Elie is a great ambassador for the business and she really follows through with her promises! I never expected that. They are also going to revise some aspects of the user interface to ensure proper notice of expense and conditions of subscription. I will certainly use PDFfiller in the future!
David C
2015-06-08
User friendly. In past years I've been able to bring up the forms I need from www.irs.gov and fill out the forms, save and print the forms. Same is true for Louisiana Dept of Revenue. Now neither of the websites supports filling out any forms. I was extremely frustrated with this change. PDFfiller has made my life so much easier. Thank you
Mel J
2016-03-23
This web site contained the basic form I needed for a transaction requested by my clients and greatly reduced the time spent preparing the documents required to commemorate the agreement of the parties to the transaction.
Anonymous Customer
2017-08-11
Helpful for Digital Signature
Overall the PDF filler is amazing and free!
These days, a lot of people don't have printers and scanners. Also, a lot of us are working from home. This software makes it possible to sign documents without printing and scanning.
My least favorite thing is that you have to create an account to save your document. It would be nice to not have to provide my email to save the document.
Courtney T.
2022-06-09
Great customer service, helped me figure out how to change the e-mail on my account, without having to get a new subscription...I was confused.
Thanks for the help!
Freefia B H
2021-04-14
Thanks for the one-time use
You acknowledged that people need a one-time use for. While this site was great, I don't need it in the near future. You made cancelling the subscription easy and not a giant maze of site's you need to navigate through.
Jesse
2025-03-10
Convert PNG to PDF and Lock PDF for Windows
Transform your PNG images into secure PDF files with our Convert PNG to PDF and Lock PDF feature for Windows. This tool offers an easy and effective way to manage your documents. You can create a professional-looking PDF from your images and ensure that only authorized users can access your files.
Key Features
Convert PNG images to high-quality PDF files
Lock PDF documents with password protection
User-friendly interface for easy navigation
Batch conversion for multiple images at once
Support for various image formats
Use Cases and Benefits
Perfect for professionals who need to present images in a secure format
Ideal for students who want to compile notes or assignments
Useful for businesses managing confidential documents
Great for photographers showcasing their portfolios
This solution addresses your needs by simplifying the process of securing your images in a PDF format. Whether you want to share personal memories or business documents, our feature gives you peace of mind with robust security. Enjoy the convenience of creating, securing, and sharing your files efficiently.
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!
How to Convert PNG to PDF and Lock PDF for Windows - video instructions
