PNG vs. JPG – what is the difference and which format to choose?

PNG and JPG (or JPEG) are the two most commonly used image file types. Do you know when to use PNG and when to use JPG? Is PNG ideal for photos? Is JPG good for logos? Let's see how they differ and which one works best for digital marketing, e-commerce, and graphic design.

PNG – Uncompromising quality and transparency

PNG (Portable Network Graphics) is a lossless format that preserves excellent image quality and supports transparency.

Main features of PNG:

- Transparency – PNG files allow you to create graphics without a background, which is why they are often used for logos, icons and UI/UX elements.
- Lossless compression – the image retains full detail, making PNG great for vector graphics, illustrations, and branding projects.
- Larger file size – the lack of lossy compression means files are larger, which can affect web page load speeds.

When is it best to use PNG?

- Company logos and graphics requiring transparency
- Screenshots - PNG keeps text sharp and legible
- Illustrations and infographics - where precision counts
- E-commerce - when you need images with transparent backgrounds

JPG - Optimization and Smaller Files

JPG (Joint Photographic Experts Group), also known as JPEG, uses lossy compression to significantly reduce the size of image files.

JPG main features:

- Lighter files – JPG compression makes it an ideal choice for websites where loading speed matters.
- Lossy quality – the greater the compression, the more detail is lost, which can lead to a "pixelated" effect on images.
- No transparency – JPG does not support transparent backgrounds, which limits its use in graphic design.

When is it best to use JPG?

- Photos for websites – JPG reduces file size without significant loss of quality.
- Social media graphics – Instagram, Facebook and LinkedIn prefer this format.
- Advertising banners and marketing materials – when loading speed matters.
- E-commerce – product images should load quickly, and JPG is great for this.

PNG or JPG – which format to choose?

If you are working with photography or images with a lot of colors → JPG
If you are creating a logo, vector graphic or UI design → PNG
If you create infographics and illustrations → PNG
If you are optimizing your website for SEO → JPG (for images)
If you are preparing files for printing → PNG (for better quality)

Summary

PNG and JPG are two completely different formats that are worth using depending on the context. If quality and transparency are your priorities, choose PNG. If loading speed and smaller file size are important, JPG will be a better choice.

If you are editing files, always work in PNG and only then export the final version as JPG to avoid any loss of quality.

Now you know which format to choose for your projects! If you are looking for professional support in graphic design, branding or SEO optimization of graphics, our marketing agency Laviere will be happy to help you!