GuideAbout 6 min
How to compress an image to 100KB, 200KB or a specific size
Learn how file size, dimensions and image quality interact, then compress JPG, PNG or WebP files to a target KB or MB in your browser.
Compress Image
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Practical answers for PDF and image workflows, format decisions and file privacy.
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GuideAbout 5 min
How to convert HEIC to JPG on Windows without uploading photos
Convert iPhone HEIC photos to compatible JPG files locally in your browser, with practical notes about quality, metadata and privacy.
HEIC to JPG
GuideAbout 5 min
How to add page numbers to a PDF without Acrobat
Add page numbers to a PDF in the browser, with control over the header or footer position, starting number and current/total format.
Add Page Numbers to PDF
GuideAbout 6 min
Visual PDF signatures vs digital signatures: what is the difference?
Understand when a drawn or uploaded signature image is enough, and when a certificate-based digital signature is required.
Visually Sign PDF
GuideAbout 6 min
Why did PDF compression save so little space?
Learn what makes a PDF large, why some files barely shrink and what browser-based raster compression changes inside the document.
Compress PDF
GuideAbout 6 min
JPG vs PNG vs WebP: which image format should you use?
Choose the right format for photos, screenshots, transparent graphics, website images and upload forms without unnecessary conversion.
Convert Format