Blog
Short, factual guides to the things people search for right before they need a tool: what a format actually is, why a form wants 50 KB, and what a photograph reveals about where you were standing.
Favicon sizes in 2026: what you actually need
The eleven-file favicon pack is dead. Six files cover every browser and platform in use, and here is which six, why, and what the tenth-generation tutorials get wrong.
How to sign a PDF on any device, without Adobe
What a drawn signature on a PDF actually is, when it is legally enough, when it is not, and how to place one without installing anything or uploading the contract.
PDF too large to upload? Seven ways to shrink it
Ordered from the ones that cost you nothing to the ones that cost you quality, with the arithmetic that tells you which of them will actually help your file.
Scan documents with your phone into a clean PDF
The gap between a photo of a document and a scan is lighting and geometry, not megapixels. How to close it, and how to assemble the result without uploading it.
How to make a picture smaller in KB, on any device
Your phone says 4.2 MB and the upload form says 200 KB. Two knobs control that number, most people reach for the wrong one, and here is which to turn first.
WebP, JPG, AVIF or PNG: which format for which job
Not a benchmark. A decision, organised by what the picture is for — a photograph, a logo, a screenshot, something with transparency, something going to print.
HEIC will not open on Windows? Every fix that works
Windows says it cannot open the file. The file is fine — the machine has no HEVC decoder. Four fixes, from least to most invasive, and what each one costs you.
How to take a passport photo at home (any country)
Home passport photos fail on head size, background shadow and lens distortion. The physics behind each one, and why a photo passes in one country and fails in the next.
Split a PDF without uploading it anywhere
Pulling three pages out of a forty-page bank statement should not require handing the other thirty-seven to a stranger. How PDF splitting actually works, and how to do it locally.
Why your photo looks washed out after you upload it
The colours were not compressed away. A small tag went missing, and the same numbers now mean duller colours. What colour profiles are, how they get lost, and how to stop it.
How to compress a PDF to 200 KB for a job application
Portals that cap uploads at 200 KB are common and rarely explain themselves. Here is what is actually making your PDF large, and how to get under the limit without turning it into mush.
300 DPI, explained: pixels, print size, and why the shop said no
DPI is not stored in your image, and setting it to 300 adds nothing. Here is the one formula that decides whether a file can be printed, with the numbers for every common size.
How many pages is 1,000 words? A conversion table that accounts for the settings
Four pages or two, depending on spacing, font and margins. The conversion tables for every common setting, why two word counters disagree, and what actually gets counted in an essay limit.
Why free QR codes stop working, and how to make one that cannot
A printed menu whose QR code now leads to an upgrade page is not a bug. It is the business model. Here is the difference between static and dynamic codes, and how to print one that outlives the company that made it.
WebP, AVIF or JPEG: choosing an image format in 2026
Three lossy formats, real size differences, honest support caveats, and a decision rule that fits in one sentence.
EXIF: what your photos reveal, and how to check
Every photo from a phone carries hidden data — where it was taken, when, on what device. Here is how to see it, when it matters, and how to remove it.
Email attachment size limits, and how to fit under them
Gmail, Outlook, iCloud and the rest — the real limits, the encoding overhead nobody mentions, and how to get a folder of photos under the line.
What actually happens when you upload a file to an online converter
Not a scare story — a description of the mechanics. Where your file goes, who can read it, how long it stays, and why none of it is necessary any more.
How to compress a photo for a visa application
Visa portals specify photo sizes in kilobytes and rarely explain how to hit them. Here are the actual limits by country, and the order of operations that works.
HEIC vs JPG: which one, and when
HEIC files are half the size of JPEGs and open on half as many things. Here is what the format actually does, and when each one is the right choice.