Guides
Explore simple guides explaining JPG, PNG, PDF, HEIC, and TIFF. Learn how to manage your images step-by-step, even if you are just starting out.
WebP files won't open — why, and the fastest fix
Why images you save from the web arrive as .webp and get rejected by photo apps, editors and upload forms, and how to convert them to JPG or PNG without losing a transparent background.
Read more →Merging and splitting PDFs — what survives and what does not
What happens to text, image quality and file size when you combine PDFs or pull out specific pages, and which parts — bookmarks, form fields, signatures — can disappear along the way.
Read more →Turning a phone photo of a document into a proper scan
How to produce a submission-ready scan without a scanner: what to get right while shooting, how shadow and perspective removal actually work, and when black and white is the wrong choice.
Read more →Which favicon sizes do you actually need — 16 through 512
What goes inside favicon.ico, where each size is actually used, and which sizes have to live outside the ICO as separate PNGs.
Read more →Why photos rotate themselves — EXIF orientation, explained and fixed
Why a photo that looks upright on your phone lies on its side once uploaded, and how to bake the rotation into the file so it stops happening.
Read more →When to inline an image as Base64 — and when not to
Where a data URI genuinely helps and where it costs you, judged on transfer size, request count and caching.
Read more →Watermarking images — where to put it and how strong
How to choose placement, opacity and size for a watermark, and why a corner mark protects nothing while a tiled one does.
Read more →Cropping images — why it costs no quality, and when it still hurts
Cropping and resizing are different operations. How preview size relates to real pixels, and how to avoid ending up with fewer pixels than the slot you are filling.
Read more →Which Format Should You Save Screenshots In?
A screenshot is neither a photograph nor a graphic; it is a third category. Here is how JPG, PNG, and WebP each behave on text-heavy, low-color captures, measured, and which to pick for which purpose.
Read more →Why Enlarging an Image Makes It Blurry (and What to Do Instead)
Stretching a small image to meet a specification always softens it. Here is what interpolation actually does, why missing detail cannot be invented, and the practical ways to get a larger original back.
Read more →How to Choose the Right Resolution for Converting PDF to JPG
The scale or resolution you choose when turning a PDF into an image dictates your final image quality. Here is what you need to know about screen vs. print standards, text sharpness, file size trade-offs, and when PNG is the better choice.
Read more →How to Meet Resume and ID Photo Size and File Limits
Job portals all have different limits for photo dimensions and file sizes. Resize your image to the correct pixel dimensions first, then compress the file size to get the best quality.
Read more →WebP vs AVIF: Which Next-Gen Image Format Should You Choose?
Compare Google's WebP and the new standard AVIF. Learn the difference in compression rates, image quality, and browser compatibility to optimize your web application.
Read more →Why Convert HEIC to JPG? Technical Differences and Device Compatibility
Find out why iPhone's default HEIC format doesn't open on Windows or web browsers. We explain the technical reasons and how converting to JPG solves compatibility issues.
Read more →Why Your PNG Still Has No Transparent Background
Converting a JPG to PNG will not make its background transparent on its own. Transparency is a container capability, not content. Here is how to actually get a transparent background.
Read more →How to Get an Image Under 500KB (Step by Step)
The difference between resizing and compressing, how a target-size approach works, and per-use limits for forms, email, and job sites, all while keeping quality as high as possible.
Read more →Why JPGs Look Blurry When Merged into a PDF (and How to Prevent It)
Learn why text gets blurry and photos lose sharpness when converting JPGs to PDF, and discover how to keep your documents crisp using the right DPI and settings.
Read more →HEIC Files Won't Open on Windows or Android? Here's the Fix
Learn why iPhone HEIC photos won't open on Windows or Android, and discover how to open them using codecs, preview tools, or by converting them to JPG.
Read more →What Is HEIC, and Why Convert It to JPG?
HEIC is the iPhone's high-efficiency photo format. It looks great but has compatibility issues — here is why you often need JPG and how to convert safely.
Read more →How to Reduce Image File Size (and How It Actually Works)
Lowering resolution and raising compression are not the same thing. Learn when quality loss is fine and how to shrink images for web and print the right way.
Read more →How to Combine Images into One PDF (and What to Watch For)
Bundling scans, receipts, or pages into a single PDF locks the order and makes sharing easy. Here is how to handle page order, page size, and quality.
Read more →JPG vs PNG: Which One Should You Use?
JPG is best for photos; PNG is best for logos and transparent backgrounds. Learn the difference between lossy and lossless compression, file size, and transparency.
Read more →