Compress PDF

PDF files grow quickly — scanned documents, high-resolution images, and multi-page reports can easily exceed 10 MB. In Australia, this causes real problems across everyday tasks. MyGov and the ATO impose upload limits of 5–10 MB on supporting documents for tax returns and centrelink claims. Medicare and NDIS portals have similar constraints. Rental application platforms often cap attachments at 5 MB, and university admissions portals typically limit each document to 10 MB.

Beyond government portals, email is the most common friction point. Gmail and Outlook both cap attachments at 25 MB — but many corporate and government email systems enforce much lower limits. Compressing your PDF before sending removes that uncertainty entirely.

1. Select your file: Drag your PDF into the upload area or click "Choose Files" to browse.
2. Choose a compression level: Pick Low, Medium, or High depending on your use case.
3. Compress: Click "Compress PDF". Processing happens instantly and entirely in your browser.
4. Check the result: You'll see the original size, compressed size, and percentage saved side by side.
5. Download: Click Download — your compressed PDF is ready.

For multiple files, add them all at once and download as a ZIP archive in a single click.

Low (best quality): Best for documents where image quality matters — portfolios, architectural drawings, high-res photos. Files reduce by 30–50% with almost no visible difference.

Medium (recommended): The right choice for most everyday documents — tax returns, rental applications, uni submissions, NDIS plans, Medicare forms. Files reduce by 50–70% while remaining clearly readable.

High (maximum compression): Use when file size is the priority — getting under a strict portal limit. Files reduce by 70–85%. Text stays sharp; images lose some fine detail.

Most online PDF compressors — including ilovepdf.com and Smallpdf — upload your file to their servers for processing. That means your tax documents, rental agreements, medical records, and immigration papers pass through a third-party server you don't control.

Our tool works entirely differently. All compression runs in your browser using JavaScript — no file is ever transmitted anywhere. This is particularly important for sensitive Australian documents: ATO notices, Medicare records, NDIS plans, and visa applications all contain personal information that should never be exposed to unnecessary risk.

• ATO tax returns: Compress receipts, invoices, and supporting documents to meet the ATO's 5–10 MB upload limit.
• Rental applications: Combine and compress payslips, references, and ID documents to send via email or upload to rental platforms.
• University applications: Compress transcripts, personal statements, and portfolios for UAC, VTAC, or direct university portals.
• NDIS documents: Reduce plan documents and reports for submission through the NDIS myplace portal.
• Medicare & private health: Compress specialist letters and referrals for submission or forwarding to your GP.
• Work visa documents: Compress supporting evidence for IMMI account submissions (Department of Home Affairs caps vary by document type).