Guides

Short, practical answers to common file and video problems.

• How to Reduce a Photo's Size for an Online Form

  Why forms reject photos, what the KB limit really means, and how to get a clear photo or signature under 20, 50 or 100 KB.

• WhatsApp Video Size Limit: What It Is and How to Send Longer Videos

  WhatsApp's current video and document limits, why the old 16 MB figure is out of date, and three ways to send a longer video.

• Discord File Size Limit in 2026: 20 MB, and How to Fit Under It

  Discord's free upload limit rose from 10 MB to 20 MB in 2026. See the limits for each plan and how to get a video under them without Nitro.

• MOV vs MP4: What's the Difference, and Which Should You Use?

  MOV and MP4 are containers, not video quality settings. Here's what actually differs, why iPhone videos won't play everywhere, and when to convert.

• How to Turn a Long Video into Shorts and Reels

  Find the moments that stand on their own, crop them to 9:16, add captions and a hook. A practical workflow for podcasts, talks and streams.

• How to Add Subtitles to a TikTok or Reel

  Add readable captions to a short video: generate them from the speech, fix the mistakes, pick a style and burn them in.

• SRT vs VTT: What's the Difference?

  SRT and VTT both store timed subtitles. Here's how they differ, what each one looks like, and which to choose for YouTube, websites and video players.

• Which Caption Style Works Best for Shorts and Reels?

  How to choose captions people can actually read on a phone: size, contrast, word-by-word highlighting and where to place them.

• How to Remove the Background from an Image

  Get a clean cutout of a person or product, what makes results better or worse, and when to use a transparent PNG or a white background.

• How to Open and Convert HEIC Photos on Windows

  iPhone photos often arrive as HEIC files that Windows and upload forms can't use. Here's why, and how to convert them to JPG.

• How to Send a Large Video by Email

  Gmail stops at 25 MB, and attachments grow when they're sent. Here's what size to aim for and what to do when a video won't fit.

• MP4 vs WebM: Which Video Format Should You Use?

  MP4 plays almost everywhere, and WebM can be smaller on the web. Here's what differs, and when to choose each.

• GIF or Video: Which Should You Use?

  GIFs loop anywhere but get big fast. Here's when a GIF is the right choice, and how to keep one small.