fits.

fits. is a browser-based PDF compression tool designed for users who need to reduce PDF file sizes quickly and securely without uploading files to a remote server. The service operates entirely within the user's browser, using WebAssembly (WASM) to process files locally. This approach ensures that the PDF never leaves the browser tab, addressing privacy concerns and eliminating the need for file uploads, logins, or waiting in queues.

The tool allows users to compress a PDF by simply dragging and dropping, browsing for a file, or pasting a copied PDF, with support for files up to 500 MB. Once a PDF is loaded, fits. displays a list of possible output sizes, such as under 2 MB, 1 MB, 500 KB, 200 KB, or 100 KB, and lets users select the most suitable size for their needs. The interface does not require adjusting sliders or settings; instead, it presents clear size options and shows the resulting file size for each. The compression process is described as fast, with text remaining sharp in the output.

fits. highlights use cases such as preparing PDFs for email (Gmail, Outlook), messaging apps (WhatsApp), and compliance with size limits for official forms and applications, including passport and Aadhaar submissions. After compression, users can save, share, preview, or transfer the file via QR code to a phone.

The tool does not require user accounts or logins, and there is no mention of usage limits beyond the maximum file size. fits. positions itself as a privacy-focused, in-browser solution for anyone needing to compress PDFs to fit specific size requirements.