About the Compress PDF
Email providers cap attachments at 20–25 MB and many upload portals accept only a few megabytes, so an oversized PDF is a common headache. This PDF compressor finds the photos and scanned images inside your document and re-compresses them at a sensible resolution, while text, fonts and vector graphics are left untouched and stay perfectly sharp. Scanned and image-heavy PDFs usually shrink dramatically.
How to Use the Compress PDF
- Click the upload box and choose your file, or simply drag and drop it in.
- Adjust the available options to match what you need.
- Click the action button and let House of Convert do the work in seconds.
- Download your result instantly — no email, no account, no watermark.
Why Use the Compress PDF at House of Convert?
- Free forever — every tool on this site is free to use, with no hidden limits.
- Private by design — your file is processed for this request only and never stored on our servers.
- Fast — results are usually ready in a few seconds, even for larger files.
- No installation — works entirely in your browser, on desktop or mobile.
Frequently Asked Questions
How do I reduce the size of a PDF file?
Upload the PDF and click Compress. The embedded images are optimized and you can download the smaller PDF, with the before and after sizes shown.
How much will my PDF shrink?
Scanned documents and PDFs full of photos often shrink by 50–90%. PDFs that are mostly text are already small and shrink very little.
Does compressing a PDF reduce quality?
Text and vector graphics are not touched, so they stay razor sharp. Only embedded photos are re-compressed, at a resolution that still looks good on screen and in normal printing.
How do I compress a PDF for email?
Compress it here and check the new size. Most email services accept up to 20–25 MB; if it is still too large, split it into parts with Split PDF.
How do I make a PDF under 1 MB or 500 KB?
Compress it first. If it is a scan and still too big, convert it to grayscale with Grayscale PDF (re-render at 150 DPI) and compress again — that gives the smallest files.
Why didn’t my PDF get smaller?
If the PDF has no large images — for example a text-only report — there is little to compress. Its size is mostly fonts and text, which are already efficient.
Will the text stay searchable after compression?
Yes. Text is not converted to images, so you can still select, copy and search it.
Can I compress a password-protected PDF?
Remove the password first with Unlock PDF (you need to know the password), then compress the unlocked file.
Can I compress a PDF on my phone?
Yes. Open this page in your mobile browser, pick the PDF from your files and download the compressed version.
Is it safe to compress confidential PDFs here?
Your PDF is processed in memory for this request and deleted immediately. It is never stored, read by a person or shared.