Convert PNG to PDF and Lock PDF for Computer 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
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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:
I couldn't get my document to print and Anne in customer service looked at my document and resolved this issue in less than 3 minutes. Great customer service!
lisa
2016-11-04
Great for starting my transportation business. PDF filler help me to search and make documents that I needed for inspections, inventories, vehicle maintenance and more..
Ronald D
2019-06-04
Great User friendly Program!! The program is very user friendly and pretty much self explanatory. However, if you do have any questions, Customer Service is also very friendly and helpful!!!! They respond quickly and walk you through any questions you have.
Albert
2024-08-24
You get what you expect What I expected from this when I signed up. It is easy to use when editing pdf files, I need to submit for my school requirements. So far, I am satisfied on what I am experiencing and giving it a 5 star.
Lyle
2023-05-01
Outstanding customer service, communication and efficiency!! I highly recommend. They are one of the best, if the THE best company I've ever dealt with!
Kim M
2022-02-02
Its a Fastest and amazing support Its a Fastest and amazing support, they have resolved my issue in just 2mins, I never seen such fastest crew anywhere, Hope you maintain the same and I wish you guys a wonderful future coming ahead, Amazed with service
rahulraj varla
2020-12-14
so far i like it and that is 15 min… so far i like it and that is 15 min into a 30 day trial, I reallyy needed to get some things notarized as well i cant believe that is a possibility or should i say a feature on pdffiller. Thank You, im glad i stumbled upod this app/program!!!
Nathan Desalvo
2020-12-01
I'm not very savy with technology, I wanted to upgrade my abilities and ease my work. I encounter PDFfilled easy to use the most imporatnt live help! I will keep learning. I'm very satisfied.
Sandra M
2020-08-11
pdfFiller is user-friendly and the site is easy to... pdfFiller is user-friendly and the site is easy to navigate. I love the fact that a function stays the same until you change it, eg. a font size and format. However, I would like the option to use all the Fonts that I have installed on my own computer. When a page is duplicated, I'd love it if the 'changes' made to the original using pdfFiller, could also be duplicated rather than simply a duplication of the original document. I also can't seem to find a way to cut and paste text to apply it in a different area of the document, which means that the process of replicating a change is more time-consuming, but this could be my current unfamiliarity with the software. I was impressed that within a couple of hours of use, I was offered the option to attend a webinar to improve my understanding.
Hayley B.
2020-07-20

Convert PNG to PDF and Lock PDF for Computer

Easily transform your PNG images into secure PDF documents with our Convert PNG to PDF and Lock PDF feature. This tool enables you to create professional-looking files while ensuring privacy and security.

Key Features

Convert PNG images to PDF format quickly and easily
Lock PDF files with password protection to secure your documents
User-friendly interface for a seamless experience
Support for batch conversion to save you time

Potential Use Cases and Benefits

Create reports featuring images without losing quality
Share sensitive documents while maintaining security
Prepare professional presentations or portfolios in PDF format
Combine multiple PNG images into a single PDF for easy distribution

This feature solves your problems related to document management and security. By converting your PNG files to PDF, you avoid format issues and maintain image clarity. Additionally, the option to lock your PDFs ensures that only authorized users can access your sensitive information. This not only protects your work but also instills confidence in your document sharing.

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 Computer - video instructions

#1 usability according to G2

Try the PDF solution that respects your time.
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