Compress PDF to 1MB

Shrink a PDF down to under 1 MB — a good default for email and most upload limits.

Select a PDF to compress

Click to choose, or drop a file here

Related PDF tools

Compress PDF to 500KBShrink a PDF down to under 500 KB, with more headroom for image quality.Compress to Target SizeShrink a PDF down until it fits under a size you choose — for email or upload limits.Compress PDFShrink file size by re-encoding page images.Compress Resume PDFShrink a résumé PDF to fit job portal and applicant tracking system upload limits.

Compress PDF to 1MB — frequently asked questions

Is 1 MB a safe default?+

For most multi-page documents, yes — it's usually enough room that the quality loss is barely noticeable, unlike the more aggressive 100 KB or 200 KB targets.

What if my file is already under 1 MB?+

It's returned as-is (or lightly re-compressed) — there's nothing to shrink.

你们会把我的文件上传到服务器吗？+

不会——这里的每个工具都完全在你的设备上处理文件，不会向服务器上传任何内容。唯一的例外是 AI 工具，它们会把提取的文本（而非文件本身）发送给 Claude 来完成工作。

有文件大小限制吗？+

我们没有人为设置限制，但由于处理过程在你的浏览器中进行，非常大的文件（超过 500MB 或 1000 页）会受到你设备内存的限制，而非我们的限制。