ReduceSize

ReduceSize

Shrink files until they fit.

Trim a PDF for a portal, a photo for email, or a GIF for chat. Set quality, dimensions, or a hard KB target—then download a lighter copy. No account needed.

Reduce a PDF Reduce an image Reduce a GIF

PDF size reducer

Shrink scans and image-heavy PDFs for portals, job apps, and email attachments. Text-only files that can’t get smaller stay as-is—we never hand you a bigger file.

Open PDF tool →

Image size reducer

Compress JPG, PNG, and WebP. Lower quality, cap dimensions, or aim for a hard KB target—then compare before and after side by side.

Open image tool →

GIF size reducer

Shrink animated loops for chat and email. Cap the longest edge, cut palette colors, or chase a KB target—without making the file larger.

Open GIF tool →

More formats

JPG size reducer PNG size reducer Photo size reducer WebP size reducer Video coming next

Common size targets

Image → 20 KB Image → 50 KB Image → 100 KB JPG → 50 KB JPG → 100 KB PDF → 100 KB PDF → 200 KB PDF → 500 KB

Aim for a KB number

Forms love round caps: 20, 50, 100, 200 KB. Pick a preset or type your own target, then check the new size before you submit.

Quality, resize, or both

Lower quality for everyday sharing. Cap the longest side for portal photos. Combine both when the limit is stubborn.

Honest results

If a text PDF can’t get smaller without wrecking it, we keep the original instead of handing you a larger file.

Why file size still blocks people

Phone cameras shoot multi‑megabyte photos by default. Scanners spit out multi‑page PDFs packed with high‑resolution images. Meanwhile, email providers, university portals, visa sites, and job boards still enforce strict upload caps. You end up stuck between “file too large” and “please don’t install another desktop app.”

ReduceSize is built for that moment. Open a PDF, image, or GIF tool, drop your file, adjust quality or a target size in KB, then download a lighter copy you can actually submit.

What to try first

  • Forms with a KB number printed on the page — use a target‑size preset like 100 KB images or 200 KB PDFs.
  • Email attachments — start with the PDF reducer or image reducer, then lower quality until the size looks safe.
  • Single-format photos — jump to JPG, photo, PNG, or WebP when you already know the format.
  • Animated loops — use the GIF size reducer to cap edge length and palette colors for chat apps.
  • Video — the video size reducer is coming next.
  • Batches — add several files, reduce them together, and download a ZIP when you’re done.
Tip: resizing an image’s longest side (for example to 1280px) often cuts more weight than lowering JPEG quality alone—especially for phone photos.

A quick workflow that works

  1. Drop the file (or several).
  2. Open Options—pick a KB target if the form prints one, otherwise start with quality around 70–80%.
  3. Press Reduce, check the new size, open the result once, then download.

Need help or found a bug? Contact us. Site details live on the about and privacy pages.