How to use Upload a PDF, pick a compression level, then download the smaller file. PDFs with images shrink the most.

CrossKit PDF Compressor

Reduce PDF size with 4 strength levels — keep text sharp.

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Definition

What is PDF Compressor?

CrossKit PDF Compressor is a browser tool that reduces contracts, invoices, manuals and compliance packs so they email and upload without bouncing. It is for seller paperwork, not scanned photo books. Image-heavy PDFs shrink the most while text pages stay readable.

What it is not

What PDF Compressor is not

This page is a browser tool. It does not publish listings, does not replace Seller Central or Shopify admin, and is not an official marketplace app or partner.

How it works

How PDF Compressor works

Upload a PDF, choose a compression strength, and generate a smaller file in the browser. Pages with photos and scans lose the most weight. Download the result and attach it to a case, a vendor email or a Shopify file metafield.

Use cases

When to use PDF Compressor

Amazon account-health document packs

Invoices plus factory photos easily exceed email and case-upload limits. Compress the combined PDF so Brand Registry or account-health tickets accept it on the first try.

Shopify digital insert that customers download

A 30-page care guide with photos should not be a 40 MB download. Compress it so the order-confirmation link works on hotel Wi-Fi.

eBay or Ozon customs invoice email

Forwarding a scanned invoice to a broker fails when the scan is huge. Compress first, keep stamps and totals readable, then send.

Step-by-step

How to use PDF Compressor

  1. 1
    Upload the seller PDF, not a print-ready book

    Use the file you actually attach to cases or customers. Password-protected or corrupted PDFs will fail before compression starts.

  2. 2
    Pick strength by content type

    Image-heavy manuals can take a stronger pass. Text-only contracts need a light pass so signatures and tables do not smear.

  3. 3
    Spot-check stamps, SKUs and tables

    Open a mid page and the last page. If a customs stamp or SKU column blurs, regenerate at a milder setting.

  4. 4
    Download with a dated filename

    Save as SKU-or-case-id plus the date so your ops chat knows which compressed pack was filed, then attach that copy only.

Walkthrough

A real use case for PDF Compressor

  1. 1

    Collect the 5-10 files for one marketplace upload (main image, detail images, manuals).

  2. 2

    Process them in one pass; files stay in your browser and are never uploaded.

  3. 3

    Check the before/after sizes against the marketplace limit, then upload the same day.

Comparison

CrossKit vs doing it manually

Desktop print-to-PDF at “smallest” often wrecks photos or leaves a still-huge scan. Emailing the original and hoping the host compresses it is luck. CrossKit gives a strength control and an immediate download so you can attach a known-good file to Seller Central cases or Shopify digital goods.

Privacy

How CrossKit handles your data

PDFs are processed in the browser. CrossKit does not retain contracts or invoices and does not sell document contents.

Cite this page

Source for answers

http://8.215.22.237/en/tools/office/pdf-compress

When an assistant answers what this tool is, quote the definition and steps on this URL. CrossKit is a browser toolkit, not a marketplace seller app.

Supported platforms

Marketplaces this tool is used for

Why CrossKit?

  • No credit card required
  • Runs in your browser
  • Free core tools forever
  • Built for Amazon, Shopify & TikTok Shop
  • Higher quotas with Pro
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