EPS Compressor

How to Compress EPS Files Online

1. Upload Your EPS Files: Drag and drop or click "Add Files" to select EPS files. Vector-only EPS, EPS with embedded raster previews, and EPS exports from Illustrator, CorelDRAW, or InDesign all work. Batch upload is supported.
2. Pick a Quality Preset: Default is High. Choose Highest or Very High to keep embedded raster images near-original, Medium for general-purpose delivery, or Low / Lowest when you need the smallest file for email or quick review. The preset drives quality of any embedded JPEG/raster data inside the EPS.
3. Set Compression Type, DPI, and Resolution (Optional): Pick a compression type for embedded raster data — JPEG (smallest, lossy), LZW or Deflate (lossless), JP2K (JPEG 2000), or PackBits. Set render DPI from 72, 96, 150, 200, 300, 400, 600, or 1200 to control raster resampling — 300 DPI is the standard for offset print, 150 for screen review. Resize by percentage or pick a resolution preset, or set an exact target file size in KB or MB.
4. Compress and Download: Click Compress. Files process in your browser session and download individually or as a ZIP — no sign-up, no watermark.

Why Compress EPS?

EPS (Encapsulated PostScript) is a vector format Adobe introduced in 1987 — a single-page subset of PostScript designed for embedding inside layouts in InDesign, QuarkXPress, LaTeX, and Word. EPS files balloon for three predictable reasons: a high-resolution embedded raster image (a logo with a TIFF preview, a brochure illustration with a 600 DPI photo), an embedded TIFF or PICT preview block that the file format optionally includes for legacy viewers, and PostScript verbosity — EPS is text-based, so coordinates, paths, and DSC comments add up. A clean vector EPS is often under 200 KB; an EPS with a 600 DPI raster fill can easily hit 50-100 MB.

• Print shop and prepress delivery — Print bureaus and packaging vendors often cap inbound files at 25 MB or 50 MB per email and reject larger artwork. Compressing the embedded raster at 300 DPI (the standard for offset and digital press) trims a 90 MB EPS to under 20 MB without affecting the print-visible result.
• InDesign and QuarkXPress placed art — Designers placing many EPS logos and illustrations into a multi-page layout end up with bloated INDD packages. Compressing the linked EPS files individually keeps the package shippable to clients and faster to open over network shares.
• Email and client review — Gmail caps attachments at 25 MB, Outlook at 20 MB by default. A vector EPS with a Photoshop-exported raster preview routinely exceeds both. A High preset at 150 DPI brings most EPS files under both limits while staying readable on screen.
• Stock library and brand asset archives — Logo and illustration libraries often store thousands of EPS files. Stripping embedded preview blocks and downsampling raster fills cuts library size by 40-70 percent without touching the vector geometry.
• Submitting to journals and academic publishers — IEEE, Elsevier, and Springer accept EPS for figures but enforce per-figure size limits (often 10 MB). Compressing embedded raster panels at 300-600 DPI hits the limit while preserving line-art crispness.
• CorelDRAW and Illustrator round-trip — EPS exports from older versions sometimes embed a full TIFF preview alongside the PostScript code. Stripping the preview cuts the file roughly in half with no visual impact when the receiving tool re-rasterizes from PostScript.

What Makes an EPS File Large — Compression Targets

Compression Type Quick Guide

Frequently Asked Questions

Will my vector paths and text stay sharp after compression?

Yes. Vector path data, text outlines, and curves in an EPS are stored as PostScript drawing commands — they aren't pixel data, so they aren't resampled or quality-reduced. Compression touches only embedded raster images (photos, scans, rasterized effects) and the optional preview block. The vector geometry that prints crisply at any size stays exactly that way.

Why is my EPS so large to begin with?

Almost always because of an embedded raster image at high DPI. An Illustrator file with a placed 600 DPI Photoshop image, exported as EPS with the preview included, can easily reach 50-100 MB. Pure vector EPS files (logos, type-only art) usually stay under 1 MB. Open the file in a text editor — if you see large blocks of binary data after a %%BeginBinary or inside an image operator, that's your raster payload.

What DPI should I pick for print versus screen?

For offset and digital press, 300 DPI is the long-standing industry standard — anything higher than 360 DPI is wasted on a printing press. Large-format printing (banners, posters viewed at distance) is fine at 150-200 DPI. For screen review, on-screen PDFs, and email proofs, 96 or 150 DPI is plenty. Picking 600 or 1200 DPI only makes sense for fine-line technical illustrations destined for high-end engraving or specialty print.

Will the file still open in Illustrator and InDesign after compression?

Yes. The output is a valid EPS that conforms to Adobe's DSC (Document Structuring Conventions). Illustrator, InDesign, QuarkXPress, CorelDRAW, Affinity Designer, Inkscape, and any PostScript-aware viewer (Ghostscript, GSview, Preview on macOS) open the compressed result the same as the original. The bounding box, color space, and embedded fonts are preserved.

Should I strip the preview block?

If your downstream tool (InDesign, QuarkXPress, LaTeX with epstopdf) renders the EPS itself, you can drop the preview safely — it's only used as a thumbnail by tools that can't interpret PostScript directly. Older Microsoft Office on Windows historically needed a TIFF preview to show EPS in Word and PowerPoint, but modern Office on macOS and recent Windows versions handle EPS without the preview block.

Can I convert EPS to PDF or another format instead?

Often a better option. PDF compresses streams natively (flate-encoded), so EPS to PDF frequently produces a smaller file than recompressed EPS while keeping vectors intact. For embedding on the web, EPS to SVG gives you a vector format browsers render directly. For raster-only delivery, EPS to PNG or EPS to JPG flattens to pixels at your chosen DPI.

Does this work for EPS files exported from Photoshop?

Yes. Photoshop EPS files are essentially a wrapper around a single raster image with optional clipping path metadata — they compress especially well because the entire payload is the embedded image. A High preset at 300 DPI typically cuts a Photoshop EPS by 50-80 percent.

Is there a file size limit?

Files process in your browser session, so practical limits depend on your device's available memory rather than a server quota. Most modern desktop browsers handle EPS files up to a few hundred megabytes comfortably. For multi-gigabyte EPS exports (rare — usually a sign of an unrecompressed scan), split or downsample the source raster first.

What's the difference between .eps, .ps, and .ai?

.eps is a single-page Encapsulated PostScript file with a %%BoundingBox declaration, designed for embedding inside other documents. .ps is a multi-page PostScript document — see PDF to PS for that workflow. .ai (Adobe Illustrator) is Illustrator's native format, which since CS has been a PDF-compatible container; older .ai files were pure EPS-compatible. XConvert outputs standards-compliant .eps that any PostScript-aware tool can read.