Why does my PDF look blurry when I convert it to a JPG?

PDFs are vector-based, meaning they can scale infinitely. When you convert to JPG, you are rasterizing it into pixels. If the conversion software uses a low default scale (like 72 DPI screen resolution), the text will appear pixelated and blurry.

Which is better for PDF extraction: JPG or PNG?

If your PDF contains mostly text, charts, or flat graphics, PNG is vastly superior because it uses lossless compression that keeps text edges sharp. JPG is better if the PDF consists entirely of photographs.

How to Convert PDF to JPG High Resolution (Without Blurry Text)

The most common complaint when converting a PDF into an image format is that the resulting picture looks terrible. The text is pixelated, the logos are blurry, and it's impossible to read when printed.

In this guide, we'll explain the technical reason why this happens, and how to use scaling settings to generate crisp, high-resolution (300+ DPI equivalent) images from your documents.

The DPI / Vector Scaling Problem

PDF files are unique because text and shapes are usually stored as vectors—mathematical curves that stay perfectly sharp whether viewed on a phone or printed on a billboard.

JPG and PNG formats are rasters—fixed grids of pixels. To convert a vector PDF into a raster image, the software has to "paint" the pixels. If the software assumes you only want to view the image on a basic monitor, it will render it at a low scale (e.g., 72 or 96 dots per inch). When you try to zoom in, you just see large, blurry pixels.

How to Extract High-Resolution Images

To get sharp text, you must force the conversion engine to render the page at a higher scale.

Open a Pro-Grade Tool: Navigate to PdfMinty's PDF to Image tool.
Adjust the Scale: In the tool settings, you will see a Scale or Resolution slider. Instead of the 1.0x default, bump it to 1.5x or 2.0x. This simulates a high-DPI (e.g., 300 DPI) rendering pass.
Choose the Right Format:
- Choose PNG if the document has crisp text, line art, or charts. PNG is lossless and will not introduce compression artifacts around letters.
- Choose JPG only if the PDF is a scanned photograph.
Export: Run the conversion. The resulting file will have much larger pixel dimensions (e.g., 2000+ pixels wide), keeping text perfectly legible.