POD IMG TOOLSFree image tools for print-on-demand sellersCREATE. OPTIMIZE. SELL.
Made for print-on-demand creators

Merch-ready images.
Minus the busywork.

Upload your design. We’ll fit it to 4500 × 5400, keep transparency, and automatically bring the PNG under 25 MB. One upload. One ready-to-check download.

Prepare my artwork   →Explore all tools
No sign-upFree to usePrivate by design
YOUR PRINT-PREP TARGETPNG
4500×5400
Exact canvas dimensions. Original proportions.
< 25 MBSize-checked output
Transparency*Transparent areas kept
100% localNo image uploads
*Automatic palette optimization may adjust colors and soft alpha edges when needed to meet the file-size limit. Always inspect before printing.

Your print-prep workbench

Real tools. Local processing. No subscription required.

11 TOOLS · ALL FREE

ONE-STEP PRINT PREP

Merch Resizer

Upload once. Get a proportional 4500 × 5400 PNG under 25 MB.

ON YOUR DEVICE
Drop your artwork herePNG, JPG, WebP · up to 50 MB per file
No file selected
ORIGINAL BEFORE
Original artwork
No image selected
YOUR OUTPUT AFTER
Processed artwork
No output yet
Preview background

Your output will appear here

Upload artwork to get started. Nothing leaves this browser.

    Input: up to 40 MP. Output: up to 32 MP. Batch: 6 files / 100 MB total. Lower-memory devices may need smaller inputs.Print-prep tips →

    LESS FILE PREP. MORE CREATING.

    From your artwork to your next upload.

    01 / UPLOAD

    Start with your best source.

    Choose a PNG, JPG, or WebP. For shirts and stickers, start with a genuinely transparent PNG when possible.

    02 / PREPARE

    Leave the repetitive part here.

    Resize, compress, inspect transparency, add a border, or handle a small batch. Everything processes on your device.

    03 / CHECK & DOWNLOAD

    Give the details one last look.

    Review the output on light and dark backgrounds. Download the actual file, then check your product’s current print template.

    YOUR CREATIVE TOOLKIT

    A little less friction. A lot more making.

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    Merch Resizer

    4500 × 5400 PNG, automatic compression under 25 MB, and transparent padding.

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    PNG Compressor

    Keep your dimensions and reduce file size. Full-color or adaptive palette optimization.

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    Background Remover

    Remove edge-connected solid colors. Color picker, tolerance, and soft-edge controls.

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    Transparency Checker

    Detect real transparent pixels, soft alpha edges, and the visible artwork bounds.

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    Sticker Outline

    Create an outline in your chosen color without clipping the edge of your artwork.

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    Shirt Preview

    Preview artwork on a flat shirt silhouette. Change the color and design size.

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    Image Upscaler

    Enlarge 2× or 4× with smooth or pixel-art interpolation. No AI-detail claims.

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    Bulk Processor

    Prepare up to six designs and download one ZIP, or batch rename without re-encoding.

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    Custom Resizer

    Choose exact dimensions, fit, crop, or stretch. Transparent-capable PNG output.

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    Format Converter

    Convert PNG, JPG, and WebP. Choose export quality and a background for JPG.

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    Color Limiter

    Reduce to an adaptive palette of 2–256 entries. Preserve fully transparent areas.

    THE PRINT-PREP FIELD GUIDE

    Small checks. Better files.

    All guides →
    PRINT PREP

    Prepare a 4500 × 5400 transparent PNG

    A practical walkthrough for sizing, transparency, and reviewing your final artwork.

    Read the guide →    FILE SIZE

    Get a PNG under 25 MB

    Understand full-color encoding, palette reduction, and the quality tradeoffs.

    Read the guide →    DESIGN CHECK

    Is your background really transparent?

    How to spot a baked-in checkerboard and avoid a white rectangle on your shirt.

    Read the guide →

    A few things worth knowing.

    Do my images leave my device?

    No image file is uploaded by these tools. Processing happens in a browser worker. The host receives normal requests for the website itself; read the privacy notice for details. Downloaded files are saved by your browser.

    Will compression always be lossless?

    No. The automatic mode tries a full-color PNG first. When that exceeds the chosen limit, it reduces the color palette. Fully transparent areas remain transparent, but colors and semi-transparent edge values may change. The result tells you when this happens. The compressor also has a full-color-only mode.

    Does resizing make a low-resolution design print sharply?

    Not automatically. Enlarging gives you more pixels but does not recover detail that was absent from the source. Our upscaler uses interpolation, not AI reconstruction. Inspect the result at the intended print size.

    Can I use this for every print-on-demand product?

    The 4500 × 5400 target is one workflow, not a universal product specification. Use the current template from your marketplace or printing provider. Custom Resizer supports other dimensions. These tools do not guarantee marketplace approval, color matching, or print quality.

    Why do some large images fail on my phone?

    A print-resolution canvas needs much more working memory than its compressed file size. Processing runs one image at a time. Close other tabs, use a smaller source, or try a device with more memory. Cancelling stops the image worker.

    Is the background remover powered by AI?

    No. This version removes a chosen solid background color. Edge-connected mode helps preserve matching colors inside a design. It is not intended to separate hair or complex photographic scenes automatically.