Compress PDF
Reduce the size of scanned or image-heavy PDFs by re-encoding their page imagery. Choose quality and resolution settings or let an optional target size guide the attempt.
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Compress PDF
📌 How it works:
1️⃣ Open a PDF to reduce file size, especially for scanned or image-based PDFs.
2️⃣ Choose a compression level, image quality and resolution.
3️⃣ Optionally set a target file size. Before-and-after sizes are shown when compression finishes.
4️⃣ You can keep original bookmarks (outline), which remain clickable after processing.
1️⃣ Open a PDF to reduce file size, especially for scanned or image-based PDFs.
2️⃣ Choose a compression level, image quality and resolution.
3️⃣ Optionally set a target file size. Before-and-after sizes are shown when compression finishes.
4️⃣ You can keep original bookmarks (outline), which remain clickable after processing.
Click or drop a local PDF
Images will be re-encoded to reduce file size
Compression LevelMedium
Image Quality80%
Image Resolution
MB
💡 Starts with high-resolution settings and tries progressively smaller options. The first option that meets the target is used for the best clarity at that size.
Most effective on scanned or image-based PDFs.
Most effective on scanned or image-based PDFs.
How to use this tool
- Open a PDF and choose a compression level, image quality and resolution.
- Enable bookmark preservation if you want to keep the outline.
- Optionally enter a target file size in MB.
- Click Compress and Save, then review the before-and-after file sizes.
Frequently asked questions
Can compression keep the PDF bookmarks?
Yes. Enable Keep Original Bookmarks to preserve outline navigation in the compressed output.
Does the target-size field guarantee a particular size?
The tool tries progressively smaller quality and resolution options and uses the first that meets the target. Achievable savings and visual clarity depend on the source document.