When should PNG, JPEG or WebP be used?
PNG is lossless with transparency, right for screenshots, diagrams and anything with sharp edges or text; JPEG is lossy and much smaller for photographs; WebP offers both modes at roughly 25–35% smaller sizes than the older formats and is supported by every current browser. Converting a page to an image fixes its appearance but loses the text layer, so the choice depends on whether the result must stay searchable.
How to use PDF to JPG
- Drop a PDF.
- Select pages, set DPI and quality.
- Click "Convert to JPG".
- Download single images or the ZIP.
PDF to JPG features
- 72–300 DPI, quality slider
- All pages or a selection on the grid
- Named files per page, ZIP for all
- Rendering by pdf.js — the same engine as Firefox
- Password-protected input supported
- Local processing
PDF to JPG example
Slides for a presentation
Input:
deck.pdf, 150 DPI, quality 88, pages 1-5Output:
deck-page-1.jpg … deck-page-5.jpg (1240×1754 for A4)Frequently asked questions about PDF to JPG
Which resolution should I use?
96 DPI for screens and previews, 150 DPI for documents you will read on a phone, 300 DPI for printing. Higher values make larger files and take longer.
Does it extract the original photos?
No — it renders whole pages. To pull the embedded pictures out in their original resolution, use the PDF Image Extractor.
Why is text slightly soft in the JPG?
JPEG is lossy and made for photos; for crisp text use PDF to PNG or raise the quality slider.
Is my PDF uploaded to a server?
No. The file is opened and processed by your browser with WebAssembly and JavaScript; nothing is sent to Mutqan Soft or anyone else. Close the tab and the file is gone. Downloading the result needs a free account — no subscription, no payment.
Can I use it on a password-protected PDF?
Yes, if you know the password: the file list asks for it once and every operation then works on the decrypted pages. The output is saved without a password unless you protect it again.
Technical notes
Each page is rendered onto a canvas at scale = DPI/72 and encoded with the browser’s JPEG encoder; a pixel cap (40 MP desktop, 12 MP mobile) reduces the scale for oversized pages. Rendering runs page by page and honours cancellation between pages.
References
- Portable Network Graphics (PNG) Specification (Third Edition)The PNG image format: lossless compression, colour types, transparency and metadata chunks.
- WebP Container SpecificationThe WebP file container and its lossy, lossless, alpha and animation chunks.
- ISO 32000-2:2020 — Document management — Portable document format — Part 2: PDF 2.0The current PDF standard: file structure, objects, pages, fonts, annotations, forms and encryption.