Fold — Smart PDF Compressor

Compress PDFs to a target size, compare previews, and keep your files on your device.

Fold — PDF, made to fit. Big document. Small upload limit? Fold helps you compress PDFs toward a target size while keeping you informed about quality tradeoffs. CHOOSE YOUR TARGET Select 500 KB, 1 MB, 2 MB, or enter a custom size. COMPARE BEFORE DOWNLOADING Preview your original and compressed PDF side by side. Navigate through pages and zoom in to inspect the details. CONTROL THE QUALITY Start with content-preserving optimization. Enable image-based compression when you need a smaller file, with an additional option for lower-quality settings. CLEAR RESULTS See the actual output size, percentage saved, and a warning when your target cannot be reached with the selected settings. PRIVATE BY DESIGN PDF processing happens locally in your browser. No file uploads, accounts, analytics, or tracking. IMPORTANT LIMITATIONS Target sizes are not guaranteed. Image-based compression flattens pages and removes selectable text, interactive forms, links, and accessibility structure. Rewriting a PDF can invalidate digital signatures. Password-protected PDFs are unsupported. Maximum input size: 100 MB. Always keep your original PDF and review the result before downloading.