Compress PDF to 1MB
Reduce any PDF to under 1MB. Runs entirely in your browser — your file is never uploaded.
Drop PDF here or click to browse
Maximum file size: 200MB · Target output: ≤1MB
How it works
- Loads your PDF entirely in your browser (no upload).
- First tries re-saving with object streams to remove unused data.
- If still over 1MB, rasterizes pages as compressed JPEGs at progressively lower quality until the file is small enough.
- For very large files, try Compress PDF first to split the work.
PDF Compression: Key Concepts
- Why compress PDFs?
- Many email systems limit attachments to 5–10MB. Form upload fields for resumes and applications often cap at 1–2MB. Compressed PDFs load faster on slow connections and take less storage space.
- Lossless vs. lossy compression
- Removing redundant objects and applying stream compression is lossless — no quality change. Rasterizing vector pages as JPEGs is lossy — it reduces quality to achieve smaller file sizes. This tool tries lossless first.
- When compression has limits
- PDFs with many high-resolution images, embedded fonts, or complex vector graphics can be hard to compress to 1MB. In that case, try reducing the number of pages or splitting the document.
Frequently Asked Questions
Why won't my PDF compress to under 1MB?
Some PDFs cannot reach 1MB no matter the compression level. This happens with documents that have many high-resolution photos, scanned pages, or complex vector illustrations — the actual information content is too large. When that happens, try splitting the document into smaller sections using the Split PDF tool, then compress each section separately.
Will compressing to 1MB make my PDF look blurry?
It depends on the original. The tool first tries lossless compression (removing unused objects), which does not affect quality. If that is not enough, it rasterizes pages as compressed JPEGs — this can reduce sharpness, especially on text-heavy documents at very low quality settings. For text-only PDFs, the lossless pass usually achieves good size reduction without visible quality loss.
Is there a file size limit for the input PDF?
The tool accepts PDFs up to 200MB. Since all processing happens in your browser, very large files (50MB+) may take a minute or more depending on your device. Compression progress is shown as a percentage. Do not close the tab while it is running.
Does compressing a PDF remove text or make it non-searchable?
Lossless compression (the first pass) preserves all text, links, and metadata. If the tool needs to rasterize pages to reach 1MB, it converts vector text to image pixels — the output will look correct but the text will no longer be selectable or searchable. For purely text-based PDFs, lossless compression usually keeps text intact.
What is the difference between this and the regular PDF Compressor?
The regular Compress PDF tool lets you choose a compression level (low, medium, high). This tool specifically targets 1MB — it automatically chooses the highest compression needed to hit that exact target, trying progressively stronger settings until the file is small enough. Use this when you have a specific 1MB upload requirement.