Three simple steps to optimize your files for UK uploads.
Drag and drop your JPG, PNG, or WebP file into the upload area. Your image is processed locally in your browser for instant privacy.
Choose your desired file size limit: Under 20KB, 50KB, 100KB, or 200KB. Dopic will automatically calculate the optimal compression settings.
Preview the result to ensure quality. Click Download to save your compressed image, ready for UK visa, government, or e-commerce use.
Solve strict upload limits for official documents and e-commerce with pixel-perfect results.
HM Passport Office and Home Office applications often enforce strict file size caps (e.g., under 10MB or specific KB limits). Compress your 35x45mm biometric photos to meet exact upload thresholds without losing facial detail or background purity.
Submit HMRC tax returns, council tax proofs, or benefit applications that require supporting documents under specific size limits. Ensure your scanned receipts and ID cards are compressed to the required KB limit instantly.
Speed up your Shopify or Etsy store by reducing product image load times. Compress high-res JPGs to under 100KB for faster page rendering while keeping crisp white backgrounds and sharp text for customer clarity.
Share high-quality images on WhatsApp, Instagram, or TikTok without consuming excessive mobile data. Reduce large PNGs or RAW exports to lightweight WebP or JPG formats that upload instantly even on 4G networks.
Bypass corporate email attachment limits (often 25MB) by compressing bulk image batches. Send large portfolios, design mockups, or client deliverables as compact ZIP-ready files directly from your browser.
Prepare images for local UK print shops like Boots or Tesco Photo. Maintain 300 DPI resolution for crisp physical prints while reducing the digital file size to manageable MB/KB levels for easy storage and transfer.
Privacy-first, precision-targeted, and completely free of watermarks.
Your images never leave your device. All compression happens locally in your browser using advanced WebAssembly technology, ensuring complete privacy and security for sensitive documents.
Set precise file size limits (Under 20KB, 50KB, 100KB, or 200KB). Unlike generic compressors, Dopic adjusts quality dynamically to hit your exact KB target every time.
Our algorithm prioritizes perceptual quality. You get the smallest possible file size without visible artifacts, blur, or banding, ensuring your images look professional.
We maintain the original 300 DPI metadata for print-ready images. Your compressed files are ready for immediate use in physical printing or official document submissions.
Compress images to under 20KB, 50KB, 100KB, or 200KB for UK visa and government uploads. 100% in-browser processing, no server uploads, preserves 300 DPI quality.
Everything you need to know about compressing images for UK requirements.
No. Dopic is a file size compressor, not a resizer. It reduces the file size (KB/MB) by optimizing the encoding and quality settings while keeping the original pixel dimensions (e.g., 1000x1000px) intact. This ensures your image remains suitable for printing at 300 DPI.
Absolutely not. Dopic processes all images entirely within your web browser using client-side JavaScript. No data is ever sent to our servers, guaranteeing maximum privacy and security for your personal and official documents.
Yes. Dopic allows you to set specific target limits such as 'Under 20KB', 'Under 50KB', etc. The tool will automatically adjust the compression level to achieve the closest possible file size to your target without exceeding it.
Dopic uses intelligent algorithms to minimize visual degradation. For UK visa and passport photos, we ensure that facial details, skin tones, and background colors (#FFFFFF) remain clear and compliant with HM Passport Office standards, even at lower file sizes.
You can export your compressed images as JPG, PNG, or WebP. WebP is recommended for web use due to its superior compression ratios, while JPG and PNG are ideal for printing and official document submissions.
Complete ecosystem of passport photo makers, AI erasers, upscalers, and format converters.
Instant 1-click AI background removal with hair-level edge detail & transparent PNG.
Erase existing text with LaMa and render parametric new typography seamlessly.
Replace photo background with pure white, official blue, red or custom colors.
Blackout or pixelate sensitive numbers, addresses and private text on ID cards.
Extract handwritten paper signatures into crisp, transparent PNG e-signatures.
Crop photos to exact mm/px, circular profile avatars and e-commerce square ratios.