Compress PDF to 100KB
Check whether your PDF can fit a 100KB limit. Compress it in your browser, see the exact output size, and download it when it meets your needs.
100KB = 102400 bytes · No upload
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Compress one file and check its exact size before downloading.
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PDF only · up to 30MB · up to 60 pagesA size limit may be impossible for a long or complex PDF. We will show the actual result. Modified PDFs may lose valid digital signatures.
How to compress a PDF to 100KB
Choose a PDF or drag it into the tool. The maximum size is already set to 100KB. Click Compress PDF and compare the measured result with the limit before downloading. If your PDF is already at or under 100KB, the original is kept.
For a tight limit, the default mode rebuilds pages as compressed images. This removes selectable text, live links, forms, bookmarks and accessibility information. Switch to Keep text and links if those features matter; that mode usually achieves a smaller reduction. Image-heavy scans tend to shrink more than text-only PDFs.
Not every PDF can reach 100KB. More pages and detailed graphics need more data, and aggressive compression may make small text hard to read. The tool reports when it cannot reach the limit and never labels an oversized result as successful. Check legibility before submitting the file.
For a 100KB form limit: a one-page PDF has a better chance than a long document. If the result is over 100KB or fine print becomes unreadable, reduce the source scan resolution or remove unneeded pages in your PDF editor before trying again.
Need another limit? Try 200KB, 500KB, or use the general PDF compressor. Files stay on your device.