PNG to PDF Converter

Convert your PNG images to PDF format. Create professional documents from your images or combine multiple PNGs into a single PDF.

PNG vs PDF: Technical Overview

A PNG is a single raster image: pixels compressed losslessly, optionally with transparency, and with no fixed physical size. A PDF is a document format that places content onto pages of a defined size, and it can embed raster images alongside text and vector graphics. When a PNG is converted to PDF, it is embedded as an image on a page. PDF supports lossless (Flate) image compression, the same family of compression PNG uses, so a PNG can be carried into a PDF without any loss of detail, which is especially important for screenshots, diagrams and scanned text. The PDF adds what the image alone lacks: a page that prints predictably, a format accepted by document portals, and the ability to combine several images into one file.

Why Convert PNG to PDF?

Screenshots, diagrams, charts and designs often need to be delivered as documents. Clients want proofs as PDF, teachers want assignments as PDF, and many application and claims portals only accept PDF uploads. Converting the PNG keeps its sharp text and lines intact, which matters for anything people need to read.

PDF also prevents casual editing and inline resizing: messaging apps and email clients often shrink or recompress images, but pass PDFs through untouched. For portfolios and presentations, a PDF of your graphic opens at full quality in every browser and PDF reader, and you can later merge several PNG-based PDFs into a single document.

What Changes During PNG to PDF Conversion

Each PNG becomes a single page sized to the image itself (using the resolution stored in the file, or 72 pixels per inch if it has none), so nothing is cropped or scaled. The image is embedded losslessly, so text, lines and colors stay pixel-perfect; file size is usually similar to the PNG. Transparent areas of the PNG show as the page color in the PDF viewer, which is white in virtually all readers, so a logo on a transparent background appears on white. The text in a screenshot isn't converted to real text: it's part of the image, so it can't be selected or searched.

PNG vs PDF: Key Differences

Feature	PNG	PDF
File type	Raster image	Paginated document
Image quality	Lossless	Lossless (embedded without loss)
Transparency	Alpha channel	Shown on white page
Multiple pages	No	Yes
Accepted by document portals	Sometimes	Almost always
Printing	Size depends on the app	Consistent page size

When to Convert PNG to PDF

Sending design proofs or mockups to clients as a PDF

Submitting screenshots as evidence for support tickets, insurance or legal matters

Turning charts and diagrams into PDF pages for reports

Uploading scanned forms saved as PNG to PDF-only portals

Creating a PDF portfolio from exported artwork

Printing infographics or posters at a consistent page size

How to Convert PNG to PDF

Click 'Select File' and choose your PNG image
Our system automatically prepares your file
Click 'Convert to PDF' button
Wait for the conversion to complete
Download your new PDF document

Processing typically takes a few seconds. For larger files, conversion may take slightly longer. All conversions are free with no daily limits.

Tips for Best PNG to PDF Results

1.Crop screenshots to the relevant area first; the page is sized to the image.
2.If a transparent logo should sit on a colored background, add it before converting.
3.Combine several PNG-based PDFs into one document with CNVRT's Merge PDF tool.
4.For printing large images on standard paper, use "Fit to page" in the print dialog.

Benefits of Converting PNG to PDF

Create professional PDF documents from images
Combine multiple PNG files into one PDF
Preserve image quality and resolution
Universal PDF compatibility
Perfect for documentation and archiving

PNG to PDF — Frequently Asked Questions

Is the PNG compressed or changed in the PDF?

It's embedded losslessly, so every pixel is preserved. Text and fine lines in screenshots stay perfectly sharp.

What happens to transparency?

Transparent areas display as the page color, which is white in practically every PDF reader.

What page size will the PDF have?

The page matches the image's own proportions, with no margins, cropping or scaling. Its physical size follows the resolution stored in the PNG, or 72 pixels per inch if there is none.

Can I select the text in my screenshot PDF?

No. The screenshot is embedded as an image, so its text isn't selectable or searchable.

How do I put several PNGs in one PDF?

Convert each PNG, then combine the PDFs with the Merge PDF tool, where you can reorder pages before merging.