How to convert image formats inside a PDF

1 min read·25 July 2026

Have a PDF with images in the wrong format, or want to convert WEBP images to JPEG for better compatibility? PDFrust's imgConvert tool converts images embedded in a PDF to your preferred format.

Which image formats does PDFrust support?

The imgConvert tool supports conversion between JPEG, PNG, WEBP and other common formats embedded in PDF files. Choose the target format based on your need: JPEG for smaller file sizes, PNG for transparency, WEBP for web optimisation.

When do you convert images in a PDF?

PDF files containing images as WEBP or PNG are sometimes not displayed correctly in older PDF readers or are not accepted by certain printers. Convert to JPEG for the widest compatibility.

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imgConvert vs. compressImg

The imgConvert tool changes the format of embedded images. The compressImg tool reduces image size without changing the format — useful when you want to reduce the file size of a PDF without changing the layout.

Adding an image to a PDF

Want to convert a standalone image (JPEG, PNG, HEIC) to a PDF to upload or send? Use the jpg2pdf tool. That turns one or more images directly into a PDF.