How to Rasterize a PDF (Convert PDF Pages to Images)
Convert PDF pages to PNG or JPEG images — useful for thumbnails, web publishing, and preventing text extraction.
Sometimes you need your PDF as an image — for web display, for creating thumbnails, for presenting in a slideshow, or for sharing content that shouldn't be copy-pasted. Rasterizing converts each PDF page to a pixel-based image file.
What Rasterizing Does
Rasterization renders each PDF page at a specified resolution into a raster image format (PNG, JPEG, WEBP). The result:
- Text becomes image pixels — not selectable or searchable
- Vector graphics become pixel grids
- The visual appearance is preserved exactly
- Images are viewable in any image viewer without a PDF reader
When to Rasterize a PDF
- Web publishing: Show PDF content on a webpage without requiring a PDF plugin
- Thumbnail generation: Create preview images for document management systems
- Prevent text copying: Once rasterized, text can't be selected or extracted (though OCR could recover it)
- Social media sharing: Share infographic pages as images
- Presentations: Insert PDF slides into PowerPoint as images
Rasterizing with PDFForge
- Open the Rasterize PDF tool (note: this tool uses the server-side API)
- Upload your PDF
- Choose output format: PNG (lossless, larger) or JPEG (lossy, smaller)
- Set DPI: 72 for web/screen, 150 for standard quality, 300 for print-quality images
- Download the result — each page becomes a separate image file
Choosing the Right DPI
- 72 DPI: Web thumbnails, social media. Smallest file size.
- 150 DPI: Balanced — good for most screen display purposes.
- 300 DPI: Print-quality. Use when images will be printed or need to be zoomed in.
Frequently Asked Questions
Can I rasterize just one page of a multi-page PDF?
PDFForge processes the entire PDF. To rasterize only specific pages, first split those pages out, then rasterize the extracted file.
What's the difference between PNG and JPEG output?
PNG is lossless — colours and edges are pixel-perfect. JPEG compresses with slight quality loss but much smaller file sizes. For text-heavy PDFs, PNG is better; for photo-heavy PDFs where some quality loss is acceptable, JPEG is fine.
Will rasterizing make my PDF searchable or unsearchable?
Rasterized images are not searchable — text becomes pixels. This is often the point for content protection. The original PDF text remains if you keep the source file.
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