File Compression
Compress PDFs and images for easier uploads, email, storage and sharing while balancing smaller file size with useful document and image quality.
Compress PDF
Reduce PDF file size privately in your browser.
SVG Optimizer
Optimize and minify SVG files online for free. Remove unnecessary markup, reduce file size and preserve vector output locally in your browser.
Create ZIP
Create a ZIP archive from multiple files online for free. Package files locally in your browser with no account, watermark or upload workflow.
Reduce file size without guessing
Compression works best when you know whether the limit is about upload size, storage, speed or visual quality.
A smaller file is useful only if it still works for its destination. Email systems, application portals and messaging services may impose hard size limits, while websites benefit from smaller downloads even when there is no formal cap. Before compressing, note the current file size and the maximum allowed by the service you are using. That gives you a concrete target instead of repeatedly exporting at random settings.
PDF and image compression behave differently
Image compression mainly trades encoding efficiency and visual detail for fewer bytes. PDF files can contain text, vector graphics, photographs, scans, fonts and metadata, so two PDFs of the same page count can respond very differently to compression. A scan-heavy PDF usually has more room to shrink than a text-first document that is already efficiently encoded.
After compression, open the output and inspect small text, signatures, charts, photographs and any pages that were originally scans. If the document will be printed or submitted as evidence, keep the original file as well. For exact upload limits, leave a little headroom because some platforms report file size differently or add their own processing after upload. If a service publishes both a size cap and accepted formats, satisfy both requirements before submitting the file.