PixelAuth vs Lessr

In an era of deepfakes and AI-generated images, proving that your photo is real has never been more important. PixelAuth gives you the tools to authenticate your media — invisibly, verifiably, and entirely on your device. HOW IT WORKS Sign any photo or image with an invisible DCT watermark — imperceptible to the human eye, yet detectable by PixelAuth at any time. Capture directly from your camera with your signature embedded at the moment of shooting. Every signature is paired with an RFC 3161 cryptographic timestamp from a Time Stamping Authority of your choice. Your media gets a tamper-proof PDF certificate including a QR code for instant verification — shareable as digital proof of authenticity. KEY FEATURES • Invisible DCT watermark — no visible alteration to your image • RFC 3161 timestamp — open standard, internationally recognized • PDF certificate with QR code — verifiable by anyone, anywhere • On-device processing — your photos never leave your device • 3 protection modes — Discreet, Balanced, Robust • eIDAS-compatible — works with qualified TSA providers for legal value in the EU • Signed Capture — sign photos at the moment you take them • Scan & verify — detect the watermark in any previously signed image PRIVACY FIRST PixelAuth processes everything locally. No account, no cloud, no analytics. Your media stays yours. Privacy Policy: https://pixelauthapp.com/privacy.html

That video too big to send on WhatsApp? Photos eating up your storage? Need to merge PDFs before a deadline? You shouldn't have to upload your personal files to some random website just to shrink them. With Lessr, everything happens right on your iPhone or iPad — no internet needed, no accounts, no ads. Your files never leave your device. HOW IT WORKS 1. Pick your files — photos, videos, or PDFs 2. Choose what you need — compress, convert, merge, or more 3. Done — save or share your results instantly That's it. No waiting for uploads. No wondering who else can see your files. COMPRESS WITHOUT LOSING QUALITY Shrink videos from hundreds of megabytes to just a few — perfect for WhatsApp, email, or freeing up storage. Compress photos and PDFs too, with full control over quality. Choose from presets like WhatsApp (16 MB), Email (25 MB), or set your own target size. CONVERT ANY FORMAT HEIC photos others can't open? MOV videos that won't play on every device? Convert between JPEG, PNG, WebP, HEIC, MP4, MOV, M4A, and WAV — all in seconds. PDF TOOLS YOU'LL ACTUALLY USE Merge multiple PDFs into one. Split pages out. Compress oversized PDFs. Create PDFs from photos. No more hunting for a website to do a simple PDF task. MORE THAN JUST A COMPRESSOR • Remove backgrounds from photos — clean cutouts in one tap • Resize images for Instagram, Facebook, passport photos, or any custom size • Trim videos to the exact clip you need • Turn videos or Live Photos into GIFs • Make custom iPhone ringtones from any video or audio • Extract audio from videos • Mute videos — remove sound without re-encoding • Strip metadata for privacy before sharing BATCH PROCESSING Select multiple files at once. Compress 20 photos in one go instead of one by one. Your time matters. BUILT FOR YOUR PRIVACY • No internet connection required — ever • No cloud uploads — files stay on your device • No account or sign-up needed • No ads • No personal data collected — only anonymous usage statistics Free to use with 2 conversions per day. Upgrade to Pro for unlimited access — one-time purchase, no subscriptions.