How to use this PDF tool
- Select the PDF.
- Choose the processing option.
- Click Optimize Images, review the result, and download it.
#022 · PDF Compression & Optimization Tool
Optimize PDF Images
Rebuild image-heavy PDF pages at a practical resolution and JPEG quality to reduce storage and transfer size. Everything runs inside your browser.
Optimize PDF Images
Local processingAd space
What this tool does
The complete page is rendered and recompressed, which is effective for scans and image-heavy documents. It also rasterizes text and vector artwork, so it is not suitable for archival masters.
Rendered page pixels × selected resolution × JPEG quality → optimized PDF
The size reduction depends on how efficiently the original PDF was already encoded.
Supported formats
Accepts unencrypted PDF files. Output is a standard image-based PDF; forms, links, and selectable text are not preserved.
| Processing | Local browser tab |
|---|---|
| Encryption | Not supported |
| Output | PDF document |
Tips for better results
- Use Smaller file for email attachments.
- Use Clearer images when small text appears in scans.
- Compare the new size and inspect several pages before deleting the source.
FAQ
How do I reduce images inside a scanned PDF?
Choose the Smaller file or Balanced preset. The tool rerenders every page and recompresses it into a new PDF.
Does Optimize PDF Images preserve selectable text?
No. Pages are converted to images, so selectable text and vector objects are flattened.
Why did my optimized PDF become larger?
The original may already use efficient compression. In that case, rerendering can add data instead of removing it.
Can this optimize only selected pictures in a PDF?
No. This browser tool processes each complete page rather than editing individual embedded image objects.
What quality setting works for emailed documents?
Balanced is a sensible first choice. Use Smaller file if the attachment limit matters more than fine image detail.
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Processing notes
| Privacy | No document upload |
|---|---|
| Large files | Limited by browser memory |