Why ExactSizer?
Most compressors only make files smaller. ExactSizer is built for the moments when a form, portal, or website asks for a specific limit and you need to get there quickly.
Exact File Compression
Compress to the Exact KB you need.
Compress JPG, PNG, WebP, GIF, and PDF files to the size you need without the usual trial and error.
Private
Lightning Fast
Exact Targets
Start compressing
Choose a target, upload your file, and download the result.
Security by Design
Your files stay on your device while you compress them, which is especially helpful for personal documents, IDs, and application files.
Made for Real Upload Limits
Use it for passport photos, visa forms, resumes, email attachments, school portals, and other uploads that reject files for being too large.
Supported Formats
From website images to email attachments, we've got you covered.
JPG / JPEG
Great for photos, portraits, and everyday web images.
PNG
Useful for screenshots, interface assets, and graphics.
WebP
A smart choice for lightweight image delivery on modern sites.
GIF
Useful for classic web GIFs when the main goal is a lighter file.
Ideal for forms, attachments, and document upload limits.
Frequently Asked Questions
Quick answers about file limits, supported formats, and common upload situations.
Can I compress an image to exactly 100KB or 200KB?
Yes. You can set targets like 100KB and 200KB directly. The final result depends on the original file, but the tool is built for this kind of request.
Can I compress PDF files to a specific KB size?
Yes. PDF compression can be aimed at a specific size for upload limits, email attachments, and portal requirements.
Which file types does ExactSizer support?
ExactSizer supports JPG, PNG, WebP, GIF, and PDF files.
Will my files stay private?
Yes. Files stay on your device during compression, which makes ExactSizer a good fit for sensitive documents and images.
What if my file cannot hit the exact target?
Some files have less room to shrink than others. In those cases, ExactSizer aims for the closest practical result while keeping the file usable.
Can I use ExactSizer for form, visa, or job application uploads?
Yes. ExactSizer is especially useful when a portal asks for a strict file-size limit such as 100KB, 200KB, or 500KB.
Do I need to install anything to use ExactSizer?
No. You can open the page, choose your file, set your target size, and download the compressed result in the same session.