Guides

How to get files right, without the guesswork.

Evergreen, step-by-step how-tos for the small file problems that come up again and again. Each one is short, specific, and points to a free tool that does the job.

7 min Jun 9, 2026

5 Color Contrast Fixes That Actually Work

A ranked playbook for fixing failing color contrast pairs while keeping your brand and layout intact.

Read guide

7 min Jun 8, 2026

Build a Web Palette From a Photo That Passes Contrast

Pull dominant colors from a photo, then do the step everyone skips and turn those swatches into accessible web roles that actually pass contrast.

Read guide

6 min Jun 7, 2026

Flatten a PDF Without Breaking Its Signatures

Flattening locks a filled form so values cannot be edited, but doing it to a digitally signed PDF voids the signature. Here is how to tell the cases apart.

Read guide

7 min Jun 6, 2026

How to Get a PDF Under 100KB for a Government Form

A target-driven method for compressing a PDF under 100KB without making your scan illegible enough to get rejected.

Read guide

7 min Jun 5, 2026

Why WhatsApp Photos Arrive Blurry, and How to Fix It

Chat apps re-compress photos on send, which is why a sharp image arrives soft. Here is the honest cause and what actually fixes it.

Read guide

6 min Jun 3, 2026

How to Tell If a File Tool Actually Runs Locally

Two repeatable browser tests that show you whether a file tool processes your data on your device or quietly uploads it to a server.

Read guide

7 min Jun 1, 2026

Why your "transparent" PNG keeps showing white

Five reasons a PNG you saved as transparent still shows a white or black background, with the tell and the fix for each.

Read guide

7 min May 26, 2026

Strip EXIF and GPS data before you share photos

Phone photos often carry GPS coordinates and timestamps. Here is what platforms strip, what they keep, and how to clean a photo yourself.

Read guide

7 min May 23, 2026

DPI, pixels and file size: stop confusing them

Pixels are what screens read, DPI is a print number, and file size is a separate result of dimensions plus compression.

Read guide