How to Convert PNG to PDF Online for Free (Step‑by‑Step)
Published: June 2026 · 5 min read
You have a PNG image – maybe a scanned document, a photo of a receipt, or a logo with a transparent background – and you need to turn it into a PDF. Unlike JPG, PNG files often contain sharp text and clean edges, making them ideal for documents. The good news: you can convert PNG to PDF for free using several simple methods, including a privacy‑friendly browser tool that also handles PNG. Here’s how to do it step by step.
Why Convert PNG to PDF?
- Combine multiple images – you can merge several PNGs into a single multi‑page PDF (ideal for scanned pages).
- Preserve transparency – PNGs with transparent backgrounds stay transparent inside the PDF, which is great for logos or signatures.
- Universal format – PDFs can be opened on any device without special software.
- Professional presentation – a PDF looks more polished than a loose image file.
Method 1: Use PDFcone’s JPG‑to‑PDF Tool (Free, Private, Browser‑Based)
PDFcone’s JPG to PDF converter also supports PNG images. It works entirely in your browser – your files never leave your device. You can upload multiple PNGs, reorder them, adjust page size and margins, and download a clean PDF in seconds.
- Open the JPG to PDF tool.
- Upload your PNG files (drag & drop or click Browse).
- Rearrange the images using the arrow buttons – the first image becomes page 1.
- Choose a page size (A4, Letter, or Fit to Image) and adjust margins if needed.
- Click "Convert to PDF" and download the result.
Pro tip: If your PNG has a transparent background, the PDF will preserve it – the background will show as white or the page's colour, which is often exactly what you want for logos or signatures.
Method 2: Use Microsoft Print to PDF (Windows, Built‑In)
Windows includes a virtual PDF printer that works with any image viewer.
- Right‑click your PNG file and select "Print".
- In the printer dropdown, choose "Microsoft Print to PDF".
- Adjust the paper size and quality settings.
- Click "Print" and choose a save location.
This method is fast, offline, and free, but it places the image on a page rather than fitting it perfectly – you may get extra white space.
Method 3: Use Google Docs (Free, Online)
If you prefer an online tool, Google Docs can insert PNG images and export as PDF.
- Open Google Docs and create a blank document.
- Go to Insert → Image → Upload from computer and select your PNG.
- Once the image is placed, go to File → Download → PDF Document (.pdf).
This method gives you control over the image position on the page, but it requires a Google account and an internet connection.
Method 4: Use LibreOffice (Free, Offline, All Platforms)
LibreOffice Draw can open PNG images and export them as PDFs, with full control over page size and image placement.
- Download LibreOffice from libreoffice.org.
- Open LibreOffice Draw and insert your PNG (Insert → Image).
- Adjust the image size and position.
- Go to File → Export As → Export as PDF… and save.
LibreOffice works offline and is completely free, making it a great privacy‑friendly option.
Need Other PDF Tools?
PDFcone offers several privacy‑friendly tools that work in your browser:
- Merge PDF – combine multiple PDFs into one.
- Compress PDF – reduce file size for sharing.
- Crop PDF – trim unwanted margins.
- Split PDF – extract specific pages.
- PDF to JPG – convert PDF pages back to images.
- Add Watermark – stamp text or logos on your PDFs.
Frequently Asked Questions
Can I convert multiple PNGs into one PDF?
Yes. PDFcone’s JPG to PDF tool accepts multiple PNG files and combines them into a single multi‑page PDF. You can also use Google Docs or LibreOffice to insert several images into one document.
Will the PNG transparency be preserved in the PDF?
Yes. PDFcone’s converter preserves transparency – transparent areas become white or show the page background. The resulting PDF looks clean and professional.
Is there a file size limit?
PDFcone supports images up to 50 MB each. Google Docs and LibreOffice have no practical size limits.
Can I convert PNG to PDF on my phone?
Yes. PDFcone’s tool works on mobile browsers, and the Google Docs app can export as PDF directly on iOS and Android.