How to Password Protect a PDF Online (Free, No Uploads)
Add an open password to any PDF free — no account needed. Restrict printing, copying, and editing with a small Premium upgrade. Your file and password never leave your browser.
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How to Compress a PDF Without Losing Quality
Reduce file size without blurry text or degraded images. Three compression levels — runs entirely in your browser.
How to Add a Watermark to a PDF Online (Free, No Uploads)
Stamp CONFIDENTIAL, DRAFT, or your logo across every page. Control opacity, position, and tiling — free for text watermarks.
How to Convert PDF to JPG — Every Page, High Quality
Export every PDF page as a high-quality JPG. 1× DPI free — upgrade to 2× or 3× for print-quality output.
How to Resize Images and Save as PNG, JPEG, or WebP
Resize to exact dimensions and export in the right format. Covers when to use each format and how to avoid quality loss.
How to Resize Images for iOS App Icons (All 13 Sizes)
Generate every required iOS icon size from a single image. Includes Xcode import steps and App Store submission checklist.
How to Resize Images for Android App Icons (All Required Sizes)
Adaptive icons, legacy densities, and Google Play requirements — all covered. Generate every size from one source image.
Best Image Format for Websites in 2026: WebP vs PNG vs JPEG
How image format affects Core Web Vitals and your Google ranking. Plus: when to use AVIF and how to convert free.
How to Split a PDF Online — Free, No Uploads
Extract a page range or split every page into individual files. Covers page range syntax, quality preservation, and privacy.