Compress PDF to 300KB

Drag and drop a PDF to reduce file size to 300KB.
Drag and drop a PDF to reduce file size to 300KB.
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New! Unlimited Free Access to Compress PDF

Enjoy unlimited free use of this tool—no sign-in or sign-up required. Compress your PDFs freely and effortlessly.

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How to compress a PDF to 300KB

Follow these simple instructions to minimize your PDF file size:

https://main--dc--adobecom.hlx.page/dc-shared/assets/images/frictionless/how-to-images/compress-pdf-how-to.svg | Three documents in decreasing size showing how to compress a PDF

  • Click the "Select a file" button or drag and drop your file into the designated area.
  • Choose the PDF you want to compress.
  • After uploading, pick your preferred compression level.
  • Download the compressed file or log in to share it.
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Benefits of using Acrobat for PDF compression

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Tailored compression to fit your needs

Adjust image resolution, compression strength, and file optimization settings to achieve the perfect balance between file size and visual quality—even when targeting compact sizes like 300KB.

Private and secure

Your privacy matters. Once your files are compressed, they’re automatically deleted from Adobe’s servers unless you choose to save them by logging in. You stay in control of your documents at all times.

High-quality results, even at small sizes

With Adobe Acrobat, reducing file size doesn’t mean sacrificing clarity. Your PDFs remain sharp and professional, suitable for both digital sharing and print—even when significantly compressed.

Accessible from any browser

Whether you're using Chrome, Firefox, Edge, or another browser, you can compress your PDFs to 300KB online without installing anything. The tool works smoothly across platforms for maximum convenience.

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Free online PDF compressor tool

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Effortless file sharing with smaller PDFs

Shrinking your PDF to 300KB makes it much easier to send and share—especially over email or collaborative platforms where file size limits can slow you down. Smaller files mean faster uploads and smoother teamwork.

Full control over compression settings

Adjust compression levels to suit your needs. Whether you're aiming for the smallest possible file or want to preserve more detail, you can fine-tune the balance between size and quality with just a few clicks.

Fast, in-browser compression

No downloads or installations required—just open your browser and start compressing your PDF to 300KB. Adobe Acrobat’s online tool lets you reduce PDF sizes quickly and conveniently, right from any device.

Questions about compressing a PDF to 300KB? We have answers.

Can I compress a PDF to 300KB without losing quality?
Yes, Acrobat ensures quality retention during compression.
What size PDFs can I compress to 300KB?
Adobe Acrobat’s online PDF compressor can handle files up to 2GB in size, but compressing a PDF down to 300KB is only practical under certain conditions. To reach that size, the original file should be relatively small—ideally under 1MB—and primarily text-based. PDFs with high-resolution images, complex layouts, or embedded fonts are less likely to compress that far without noticeable quality loss, even with maximum compression settings.
How do I compress a PDF file further?
Use higher compression settings or optimize file content.
Can I compress several PDF files to 300KB each at the same time?
Yes, Acrobat supports batch processing, allowing you to compress multiple files at once. However, reducing each file to exactly 300KB depends on the content of each PDF. Files that are mostly text and under 1MB in size are more likely to reach that target. PDFs with images, graphics, or complex formatting may not compress to 300KB without significant quality loss, even when using the highest compression settings.
How long does it take to compress a PDF to 300KB?
Compressing a PDF to 300KB usually takes just a few seconds to a minute, depending on the file size or your internet speed.
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More resources

Content as a Service v3 - compress-pdf - Tuesday 17 June 2025 at 11:32

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Compress PDF to 300KB online.
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Three documents in decreasing size showing how to compress a PDF.
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Reduce your PDF to 300KB quickly and easily with Acrobat online PDF Compressor tool for free.
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