Compress Image to 800 KB

Compress an image to 800 KB — enough data behind a full A4 print at 300 DPI.

Supports JPEG, PNG, WebP, GIF, BMP and more — up to 50 MB

How to compress an image to 800 KB.

The target is preset, so this takes three steps — plus what to expect at 800 KB.

1
Step 1

Upload your image

Click upload or drag and drop any JPEG, PNG, WebP, SVG, or GIF file from your device.

2
Step 2

Target is already set to 800 KB

This page is preset to 800 KB, so there is nothing to type. Choose JPEG or WebP output for the most efficient result at this size.

3
Step 3

Compare, then download

Press compress and check the result against your original in the slider. Enough for a sharp A4 print at 300 DPI is the realistic pixel budget at 800 KB — download when it looks right.

Getting the best results

Print a test crop first

Before committing to a large run, print a small section at final size. Screen previews consistently flatter compressed images, and paper tells the truth.

Ask the printer about colour

Commercial printing usually wants CMYK and a specific profile. Compression here produces sRGB, so confirm what the printer expects before sending the file.

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Bulk Compressor

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Image Rotator

Rotate images by any angle or flip horizontally/vertically.

Compressing an image to 800 KB.

What 800 KB is actually for, what it can hold, and how to get there without wasting quality.

What 800 KB is good for

800 KB is a print threshold. A full-page A4 print at 300 DPI needs roughly 2480 × 3508 pixels — about 8.7 megapixels — and this is comfortably enough data to render that sharply.

Print is less forgiving than screen. Ink has no backlight to hide behind, and compression artefacts that vanish on a monitor can appear as mottling in flat areas.

Where this size is required

Full-page A4 prints, photo enlargements up to A4, framed prints, high-quality flyers, and images sent to a commercial printer.

What to expect at 800 KB

Enough for a genuinely sharp A4 print at 300 DPI. Beyond A4, resolution rather than file size becomes the limiting factor.

Frequently asked questions.

Everything you need to know about compressing images to 800 KB.

Resolution matters more than file size: about 2480 × 3508 pixels for 300 DPI. At that resolution, 800 KB of well-compressed JPEG data prints without visible artefacts.

It can, particularly as mottling in skies and skin tones. Keep the quality setting high for print work — this is not where to economise.

Resolution matters more than size: about 2480 × 3508 pixels for 300 DPI. At that resolution 800 KB of well-encoded JPEG prints without visible artefacts.

It can, particularly as mottling in skies and skin tones. Keep quality high for anything going onto paper — this is not the place to economise.

Commercial printers usually want CMYK with a specific profile. Compression here outputs sRGB, so confirm expectations before sending the file.

For a photographic JPEG, enough for a sharp A4 print at 300 DPI is the practical ceiling before compression becomes visible. Flat graphics, screenshots, and document scans do considerably better, because they contain less fine detail to preserve.

No. Images are processed on our secure server only to perform the compression and are deleted immediately after your download. They are never stored, shared, or accessed by anyone.