Convert PNG to PDF and Encrypt PDF for Windows Kostenlos

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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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Zuletzt aktualisiert am Jan 16, 2026

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Convert PDFs into Word, Excel, JPG, or PPT files and vice versa.
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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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Why choose our PDF solution?

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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:
Wish we had a phone number to speak to customer service directly. I am old school and like to get directions with a call otherwise you have a great service.
Stephen L F
2019-02-20
What do you like best?
I can send as many documents out for signature as I want. No restrictions. I used to use Adobe, but they had a cap on the amount of documents you can send for signature. When I tried to get that upgraded, they had outlandish prices for this same service. With PDFfiller, I can send all the documents I want and I'm also able to save all of them securely.
What do you dislike?
I wish the PDF conversions didn't come out like pictures. When I convert a PDF to Word, it always comes into Word as a picture instead of being able to edit the document. As a recruiter, I receive a lot of resumes that need some work before we can submit them to clients. I still have to use Adobe for this function, so now I'm paying for two PDF programs. I can't just stay with Adobe though because of the above mentioned issues.
Recommendations to others considering the product:
If you need eSignatures, this is the program to go with.
What problems are you solving with the product? What benefits have you realized?
Remote onboarding is a breeze with PDFfiller. I am able to send HR documents to people across the country and still get them to work on time. I'm in VA and have to get employees to work in all states across the country, as well as oversees. We have to get documents to them for signature and faxing doesn't always work. With PDFfiller, we can send anyone any document and get it back fully signed by them. It's truly wonderful.
Angela Camacho
2019-01-30

Convert PNG to PDF and Encrypt PDF for Windows

Transform your PNG images into secure PDF documents effortlessly. This feature gives you the ability to ensure that your files are not only converted quickly but also encrypted for added security. You can maintain the integrity and quality of your images while protecting sensitive information.

Key Features

Seamlessly convert PNG images to high-quality PDF format
Encrypt PDF files to safeguard your sensitive data
User-friendly interface for easy navigation
Batch processing for multiple files at once
Support for various PDF settings and customization options

Use Cases and Benefits

Perfect for professionals who need to present images in a secure format
Ideal for educators sharing resources while protecting their work
Beneficial for businesses wanting to send confidential documents safely
Convenient for individuals organizing personal photos in a portable format
Saves time and effort with bulk file conversion and encryption

This feature serves as a solution to your file management and security needs. By converting PNG to PDF, you preserve the quality of your images while making them more accessible. The encryption function adds a layer of protection, ensuring that your documents remain confidential. Trust this tool to help you work efficiently and protect your valuable information.

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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
To convert an image to PDF, select Print from the image viewer and choose the PDF printer (in this example nova PDF) before clicking on OK. If you need to convert several images at once to a single PDF, use Windows Explorer to select all the images for conversion, right-click on one of them and choose the Print option.
Use the built-in feature from Windows 10 Now, select all the images you want to turn into a PDF file, right-click the first one, and choose Print. When the window pops up, select Microsoft Print to PDF printer. Once you're done with all settings, just hit Print. Select a folder where you want to save your PDF file.
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'.
Choose Tools > Protect > More Options > Encrypt with Password. Choose File > Protect Using Password, and then choose Advanced Password Protection from More Options.
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.

How to Convert PNG to PDF and Encrypt PDF for Windows - video instructions

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Users Most Likely To Recommend - Summer 2025
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Easiest To Do Business With - Summer 2025
Best Meets Requirements- Summer 2025