PDF 到 JPG 转换器 — 快速免费

Converting PDF to JPG renders each page of the PDF as a separate JPEG image, making the content viewable on any device without a PDF reader. PDF stores fixed-layout pages with embedded fonts and vector graphics; JPEG uses lossy DCT compression optimised for photographic content. The conversion renders each page at the specified DPI (150 DPI for screen use, 300 DPI for print quality) using a high-accuracy renderer, then applies JPEG compression at the selected quality level. Text in the original PDF is rasterised into pixels during this process, so the resulting images are not text-searchable. For PDFs that contain complex vector diagrams or fine typography, a DPI of 200 or higher is recommended to avoid visible aliasing. Multi-page PDFs produce one JPEG per page, delivered as a ZIP archive. 1converter processes PDF-to-JPG conversion using Ghostscript, which accurately handles embedded PostScript fonts, ICC colour profiles, and transparency masks.