# Compress PDF to 10 MB > Compress a PDF to 10 MB or less to make large PDFs small enough to email. Processed in an isolated cloud sandbox and deleted automatically. Free, no sign-up, no watermark. URL: https://www.converterrr.com/compress-pdf-to-10mb Shrink a PDF to 10 MB or less to make large PDFs small enough to email. API: `POST /api/v1/jobs` with `"operation": "compress", "target_size": "10mb"` (paid plans). ## How to compress a PDF to 10 MB 1. **Add your PDF.** Drop one or more PDF files onto the compressor above, paste them, or click to browse. 2. **10 MB is preset.** The target is already set to 10 MB, and each file is compressed to land at or just under it. You can switch to another size or a percentage to reduce by. 3. **Compress.** Click Compress. The PDF is processed in an isolated cloud sandbox and deleted afterwards. 4. **Check and download.** Check the new size, then download each file or all of them as a ZIP. ## Good to know - 10 MB is mainly for very large PDFs: catalogues, long scans and print-ready files. Expect quality close to the original. - That's about 1 MB per page for a 10-page document (photos and scans stay sharp). Text stays selectable at any size; it's the scans and photos that get downsampled. - 10 MB here means 10,000,000 bytes, a little under the 10,485,760 bytes some sites mean by 10 MB, so the result fits either way. - PDF files are compressed in an isolated cloud sandbox created just for your job; the upload and the result are deleted automatically afterwards. ## What fits in 10 MB Spread across the pages, 10 MB gives each page this much room. Text costs very little; scans and photos cost the most. | Pages | Budget per page | What survives | | --- | --- | --- | | 1 page | 10 MB | Photos and scans stay sharp | | 5 pages | 2 MB | Photos and scans stay sharp | | 10 pages | 1 MB | Photos and scans stay sharp | | 25 pages | 400 KB | Scans at good resolution | | 100 pages | 100 KB | Scans readable, photos softened | _Rough guide. Text-only pages are often just a few KB each; a scanned page is mostly image data._ ## What 10 MB is typically for - Image-heavy catalogues, brochures and portfolios - Long scanned documents and books - Sending through chat apps and email instead of a download link Limits vary by site and change over time; check the exact number where you're uploading. ## How PDF gets smaller Downsamples and recompresses images, subsets and compresses fonts, and removes duplicate data. [Compress PDF by quality level instead](https://www.converterrr.com/compress-pdf) ## Neighbouring sizes - [Compress PDF to 2 MB](https://www.converterrr.com/compress-pdf-to-2mb): Portfolios & reports - [Compress PDF to 5 MB](https://www.converterrr.com/compress-pdf-to-5mb): Email-friendly PDFs ## PDF to 10 MB: frequently asked questions ### How do I compress a PDF to 10 MB? Drop the PDF onto the compressor above. The 10 MB target is already set, so just click Compress and download the result. ### Will the file be exactly 10 MB? It aims to land at or just under 10 MB. 10 MB here means 10,000,000 bytes, so it also fits sites that count 1 MB as 1,048,576 bytes. ### How much quality will I lose at 10 MB? 10 MB is mainly for very large PDFs: catalogues, long scans and print-ready files. Expect quality close to the original. That's about 1 MB per page for a 10-page document (photos and scans stay sharp). Text stays selectable at any size; it's the scans and photos that get downsampled. ### My PDF is already smaller than 10 MB. What now? Then it already fits, and compressing it further would only cost quality. Upload it as it is, or pick a smaller target if you need it smaller still. ### What if my PDF can't get down to 10 MB? Long scanned PDFs may not reach 10 MB while staying readable. Split the PDF into parts, or pick a larger size. ### What is 10 MB typically needed for? Common reasons: image-heavy catalogues, brochures and portfolios; long scanned documents and books; sending through chat apps and email instead of a download link. Limits vary by site, so check the exact number where you're uploading. ### Is my PDF private? Yes. It's processed in an isolated cloud sandbox for your job only and deleted automatically afterwards.