Image Resizer Guide — Scale Photos to Exact Pixels
Resize JPG, PNG, and WEBP without desktop software. Aspect ratio, downscaling, and social crop tips.
Published June 1, 2025 · 1 min read
3 uses per day · 200 MB · TLS encrypted · auto-delete
Resize images without desktop software
The image resizer scales JPG, PNG, and WEBP to exact pixel dimensions or percentage — useful for social crops, thumbnail grids, and CMS upload limits.
Best practices
- Downscale for web; upscaling cannot add real detail
- Keep aspect ratio locked to avoid stretched logos
- Export PNG when you need transparency after background removal
3 uses per day · 200 MB · TLS encrypted · auto-delete
Frequently asked questions
How do I complete this task with RatPDF?
Follow the workflow in this guide, then open the free tool at ratpdf.com/image-resizer.
Is this free on RatPDF?
Yes — RatPDF free tier includes 3 uses per tool per day (200 MB per file).
What are the upload and daily limits?
Free: 200 MB per file, 3 uses/tool/day. Pro supports uploads up to 4 GB — see /subscription/plans.
Sources & references
Primary references used when researching and fact-checking this guide. See our editorial methodology.
-
Adobe PDF Reference — encryption
— Adobe
PDF password protection and encryption standards (ISO 32000). -
Ghostscript documentation — PDF settings
— Artifex Software
Compression level behavior and PDF output settings.