Step-by-Step Guides
Everything you need to get the best results from every FileCrisp tool — from format choices to compression levels to page sizes.
How to Compress Images
Reduce PNG, JPEG, and WebP file sizes by up to 96% without visible quality loss. Format comparison, quality settings, and batch tips.
How to Convert Image Format
Convert between PNG, JPEG, and WebP. Understand when to use each format and the transparency warning for JPEG conversions.
How to Resize Images
Resize images to exact pixels or social media presets — Instagram, YouTube, Twitter, LinkedIn and more.
How to Crop Images
Crop to square, 4:3, 16:9, or freeform. Understand aspect ratios and when to use each for social, print, and web.
How to Use Scanner Generator
Turn any photo into a scanned document with grayscale, B&W, or color-enhanced styles. Perfect for professional submissions.
How to Compress PDF
Two compression modes explained — structural (text stays selectable) vs rasterize (maximum savings). Choose the right one for your document.
How to Merge PDF Files
Combine multiple PDFs into one. Upload order sets page order. Works with any number of files — no Adobe required.
How to Convert PDF to Image
Extract pages from a PDF as PNG images. Single page gives one image; multi-page gives a ZIP. Page naming explained.
How to Convert Images to PDF
Combine PNG, JPEG, or WebP images into a single PDF. Choose A4, Letter, or fit-to-image page size.
How to Use Signature Marker
Overlay a signature image onto a PDF or photo. Understand the difference between PDF output and PNG output.
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