PDFAITools
Tool Guides & How-Tos
Step-by-step guides for every tool — learn what it does, how to use it, tips, and FAQ. 441 guides available.
Image Watermark Tool
Add text or image watermarks to photos for copyright protection.
GIF Maker
Create animated GIFs from images or video clips online free.
Image Cropper
Crop images to exact dimensions, ratios, or custom shapes online.
QR Code Generator
Generate custom QR codes for URLs, text, WiFi, vCards and more.
Image to Base64
Convert any image to Base64 encoded string for embedding in code.
AI Image Upscaler
Upscale low-resolution images 2x or 4x with AI enhancement.
HEIC to JPG Converter
Convert iPhone HEIC photos to JPG format instantly.
WebP to PNG Converter
Convert WebP images to PNG format with full transparency support.
WebP to JPG Converter
Convert WebP images to JPG format for universal compatibility.
Video to GIF Converter
Convert video clips to animated GIF files with custom settings.
Video Compressor
Compress video files to reduce size for email, upload, and sharing.
Video to MP3 Extractor
Extract audio from video files and download as MP3.
PNG to SVG Converter
Convert raster PNG images to scalable SVG vector format.
Image to ICO Converter
Convert images to ICO format for website favicons and app icons.
Color Contrast Checker (WCAG)
Check if your text and background colors meet WCAG accessibility standards.
CSS Gradient Generator
Create beautiful CSS gradients with a visual editor and copy the code.
CSS Box Shadow Generator
Design CSS box shadows visually and copy production-ready code.
Aspect Ratio Calculator
Calculate image and video aspect ratios and resize dimensions.