Use the Image Resizer when you need smaller image dimensions for websites, forms, profile images, thumbnails, social posts, or a PDF with resized page dimensions. The tool reads the file in your browser, lets you resize by exact size, percentage, or grouped social media sizes for images, then exports a resized copy.
How to Use Image Resizer
- Choose or drop an image or PDF from your device.
- Choose By Size, As Percentage, or Social Media mode. Social Media mode is image-only.
- Set pixel dimensions for images or point dimensions for PDF pages. For PDFs, choose a common page size or custom dimensions.
- Set the optional JPG target size in KB or MB when exporting JPG images.
- Compare the original and resized summary, then download the resized image or PDF.
Resize images and PDF pages without heavy software
Many editing apps include advanced tools that are not needed for a quick resize. This page focuses on the common workflow: choose an image or PDF, set the target size by pixels, points, percentage, or an image preset, choose whether image social presets should crop or pad instead of stretching, preview the result, and download a new file.
What is an image resizer?
When should you resize?
Key Features
- Drag-and-drop image or PDF selection
- Resize images by exact width and height
- Resize images or PDFs by percentage
- Resize PDF pages to common or custom page sizes
- Choose Standard, Facebook, or Instagram preset groups for images
- Crop or pad social presets without distortion
- Warn before image social preset upscaling
- Compare original and resized dimensions and file size
- Set optional KB or MB target size for JPG export
- Save images as original format, PNG, JPG, or WebP
Common Use Cases
- Website thumbnails
- Profile photos
- Form uploads with size limits
- Social media images
- PDF page size adjustments
Privacy
Your image or PDF is processed locally in your browser and is not uploaded to our server.
Limitations
Very large images or PDFs may be limited by your device memory. Target file size is available for JPG export only because browser PNG, WebP, and PDF file sizes cannot be reliably targeted in the same way. PDF resizing changes page dimensions by fitting each page into a new page size; it does not edit individual text or images inside the PDF.