How-to Guides
Step-by-step guides to get the most out of your tools — quick answers, detailed steps, and recommended software.
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How to Convert Image to PDF (Free & Online)
Upload your images to PDF24 — free, no limits, works directly in your browser. For batch conversion of 20+ images, iLovePDF is faster with its drag-and-drop reordering.
Alex Chen 
How to Compress a PDF (Free & Online)
Upload your PDF to PDF24 — open-source, fully free with no daily limits. For faster results, Sejda compresses most files in under 10 seconds.
Alex Chen 
How to Convert HEIC to JPG (Windows, Mac, iPhone, Online)
On Mac, select HEIC files in Finder, right-click, and use Quick Actions → Convert to JPEG. On Windows, install HEIF Image Extensions from the Microsoft Store, then use Microsoft Photos to export as JPG. For batch conversion on any OS, iMazing Converter is free and handles hundreds of files at once.
Alex Chen 
How to Convert HEIC to PDF
For a single HEIC file, use iLoveIMG — upload the HEIC image and download it as a PDF. For multiple HEIC photos into one PDF document, use CloudConvert which supports batch HEIC-to-PDF conversion with 10 free files per day. For Windows desktop batch conversion, IrfanView can convert HEIC files to images that you then combine into a PDF using its multipage TIFF or PDF output option.
Alex Chen All Guides
How to Compress Images for Website
Upload your image to TinyPNG or Squoosh — both compress files by 50-80% in the browser with no signup. Download the smaller version and replace the original on your server.
Sarah Mitchell 
How to Compress PNG Without Losing Quality
Upload your PNG to TinyPNG for automatic smart compression — typically 60-70% smaller with no visible quality difference. For offline use, Squoosh gives real-time quality control in your browser.
Alex Chen 
How to Split a PDF (Free & Online)
Upload your PDF to PDF24 — fully free, no limits. For simpler interface, iLovePDF gives 2 free tasks per day.
David Park 
How to Take a Scrolling Screenshot
ShareX is the best free scrolling screenshot tool for Windows. On Mac, Shottr does it for free at just 2.3MB. Both auto-scroll and stitch pages into one image.
Alex Chen 
How to Reduce Image File Size
Upload your image to TinyPNG or Squoosh — both compress files by 50-80% in the browser. For photos, aim for 75-80% quality. For screenshots and graphics, 50-60% works well since solid-color areas compress more efficiently.
Sarah Mitchell 
How to Upscale an Image Without Losing Quality
For most images, Upscayl is the best free option — it uses AI models to add detail without artifacts. For professional photo restoration, Topaz Gigapixel gives the highest quality but costs $29/month. For batch processing and online use, LetsEnhance offers 10 free credits on signup.
Alex Chen 
How to Make Background Transparent
Upload your image to NoBG.app or Remove.bg — the AI removes the background in about 5 seconds. Download the transparent PNG for free.
Alex Chen