Compress PDF to Exact Size
Targets a specific file size by re-rendering each page as a compressed image and searching for the JPEG quality that fits your target. Output pages are flattened images — text stops being selectable.
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DownloadHow to use Compress PDF to Exact Size
- Upload your PDF and set a target file size (e.g., 2 MB, to fit an email attachment limit).
- The tool re-renders each page as a compressed image and searches for the JPEG quality level that hits your target size.
- Download — the result fits under your size limit as closely as possible.
Limitations
- Because output pages become compressed images, text is no longer selectable or searchable in the compressed file — this is a real trade-off for hitting an exact size target, not a bug.
- For a PDF you still need text-searchable, use a lighter general compressor instead of a hard size target.
Frequently asked questions
Why isn't the text selectable after compressing?
Hitting an exact file size requires converting pages to compressed images and tuning the quality level — that's the only reliable way to guarantee a specific output size. If keeping selectable text matters more than hitting an exact size, use general PDF compression instead.
About this tool
Compress PDF to Exact Size is a single-purpose utility on instant.tw, a free toolbox of calculators, converters, generators, and quick lookups. Everything works in your browser — nothing is uploaded, nothing is stored on a server unless explicitly noted.
Category: PDF & Document Tools. Browse more PDF & Document Tools tools.