Compress PDF to 50 KB Online
Compress a PDF to a target size of 40 KB to 49 KB while keeping text, fonts and vector content as clear as possible.
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Target size:
40 KB - 49 KB
The tool tests quality-preserving PDF compression profiles and keeps only a result inside this target range.
The tool tests quality-preserving PDF compression profiles and keeps only a result inside this target range.
Original Size
Compressed Size
Size Reduction
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How to Compress PDF to 50 KB
Upload PDF
Select or drag and drop the PDF you want to compress.
Start Compression
Click Compress to 50 KB
Check Size
The tool accepts a result only when it reaches 40 KB to 49 KB.
Download
Download the generated PDF after successful compression.
Compress PDF Features
40-49 KB Target
The accepted output is kept inside the requested 40 KB to 49 KB range.
Quality First
Text and vector content are preserved instead of converting every page into a bitmap.
Browser Processing
Compression runs locally in your browser using WebAssembly.
Private Processing
Your PDF is processed on your device rather than uploaded to a server.
Compress PDF FAQ
Not every PDF can reach this narrow range without changing image quality. The tool accepts only a candidate inside the target range; if no suitable candidate is found, it tells you instead of pretending that the target was reached.
The compression engine uses Ghostscript PDF rewriting rather than rendering every page into a JPEG image. Text and vector elements are therefore not intentionally flattened into page images. Image-heavy PDFs can still require image downsampling to reach a small target size.
No. This page is designed for browser-side processing with WebAssembly. Your PDF is kept in the browser during compression.
The browser needs to download and initialize the Ghostscript WebAssembly engine the first time. Later use can be faster because the browser may reuse its cached resources.