How to Convert PNG to PDF for Free: 5 High-Quality Methods

PNG is a perfect format type for images, but when it’s time to print, share professionally, or bundle multiple graphics into one document, converting PNG to PDF is necessary. Whether you’re archiving your vacation photos, compiling a portfolio, or prepping PPT for a client, a well-formatted PDF ensures smaller file sizes, consistent layouts, and a polished look.

However, not all converters are good for use. Some squish your image quality, others bombard you with advertisements or watermarks. To save you the trial-and-error grind, we’ve tested 5 free and high-quality methods from built-in OS tricks to design-friendly tools. Here’s a sneak peek:

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Ready to Start? Let's jump into details and step-by-step guides!

Save PNG as PDF on Mac and Windows with Built-in Tools

Both Mac and Windows offer built-in tools to convert PNG to PDF in seconds—no downloads, no sign-ups, no network restrictions, and 100% free. Whether you’re a student rushing to submit an assignment or a professional prepping a quick report, these built-in methods are good choices for quick single-image conversion.

● For Windows Users: Right-click the PNG file > Select Open With > Select Paint > Click File on the top-left corner > Choose Print or use the shortcut Ctrl+P > Set the printer to Microsoft Print to PDF > Click Print in the bottom right corner > Choose the location you want to save to > Click Save.

● For Mac Users: Right-click the PNG file > Select Open With > Select Preview > Click on the File menu in the top-left corner and select Export as PDF > Choose the location you want to save to > Click Save.

Use Adobe Acrobat to Convert PNG to PDF Online (Limited Free)

When it comes to “PDF,” chances are you think of Adobe Acrobat. As the industry-standard tool for PDF workflows, Adobe Acrobat performs excellently in terms of functionality. Its online converter is no exception. But it’s no secret they’re confident in their pricing. Their online converter does the job flawlessly… until the free trial (just one or two times) ends and you’re left staring at a subscription page that costs more than your Netflix plan.

This is the website of their online conversion tool, and it provides a step-by-step guide on how to convert PNG to PDF. You'll find out if you give it a try: https://www.adobe.com/acrobat/online/png-to-pdf.html

Use PDF Reader Pro to Convert PNG to PDF Online (Fast & Totally Free) 

Tired of jumping through hoops to convert a simple file? Meet PDF Reader Pro’s online converter. Unlike tools that limit the number of free trials and hide features behind logins or subscriptions, this web-based converter lets you convert PNG to PDF with no sign-ups, no “free trial” traps. Meanwhile, its execution speed and output quality are very impressive! Whether you’re a student rushing to submit an assignment or a professional prepping a quick report, PDF Reader Pro’s online converter is perfect for you.

Now, visit the website of the PDF Reader Pro online converter to convert your PNG to PDF. Just click PNG to PDF, upload your PNG file, and you'll get a high-quality PDF file in seconds.

But wait! While we’re focusing on PNG-to-PDF today, PDF Reader Pro’s converter handles over 9 file formats (DOC to PDF, PDF to TXT, HTML to PDF… you name it). It’s like having a Swiss Army knife for file formats, minus the subscription fees!

Use SmallPDF to Convert Multiple PNGs to a PDF Online (Limited Free)

If you want to convert multiple PNGs and merge them into a single PDF, SmallPDF is a solid pick. This web-based tool lets you upload multiple PNGs at once, arrange their order, and export them as a polished PDF. Plus, it offers handy extras like page rotation and custom sizing (A4, Letter, or auto-fit), making it ideal for straightforward batch conversions. However, its free trial is limited. If you want to use it without restrictions, you have to log in and subscribe.

If you want to merge your vacation photos into a travel diary just one or two times a year, click here to use SmallPDF's converter. Choose your files and adjust every page as you like, then click Finish to download.

How to Convert PNG to PDF Online with the Graphic Design Tool Canva?

If your PNG isn’t just an image but a canvas for creativity, Canva is your playground. This popular design tool isn’t just about converting files, it’s about turning a basic PNG into a visually stunning PDF with templates, stickers, and layouts that make your document stand out. However, Canva is very persistent in making you log in. If you don't log in, you won't be able to use it. In addition, many of the materials provided by Canva require payment for use.

If you don't mind logging in, you can use Canva to convert your PNG to PDF and explore Canva for some inspiration. Just upload your file, edit it as you like, and click Download to save it as a PDF. And yes, converting PNG to PDF with Canva is free, but if you’re just after speed and simplicity without the design frills, tools like PDF Reader Pro’s converter offer one-click conversions, and no login is needed.

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Conclusion & Final Recommendation

After testing 5 methods, here’s the ultimate cheat sheet for converting PNG to PDF:

● Need speed and simplicity? PDF Reader Pro and built-in tools (Windows/Mac) are perfect for quick conversions.

● Batch conversions on a budget? SmallPDF handles multi-file merging but nudges you toward subscriptions.

● Prioritize design needs? Canva shines for creative projects but requires logins and upsells of premium assets.