Need to shrink a PDF on your Android phone before emailing or uploading it? You can compress a PDF directly in Chrome without installing any app. This guide shows you how — for free, with no watermarks added.
Open Chrome on your Android device and go to pdfeditor.onl/compress-pdf. The tool is fully responsive and works well on mobile screens.
Tap the upload area. Select the PDF from your Downloads folder, Google Drive, or any accessible storage. The original file size will be displayed.
Tip: PDFs received via WhatsApp are saved in the WhatsApp/Media/WhatsApp Documents folder on Android. You can find and upload them from there.
Select from three levels: Basic (high quality, mild compression), Balanced (good quality, noticeable size reduction), or Smallest (maximum compression, some image quality reduction). For email attachments, Balanced is usually the right choice.
Tap Download PDF. Chrome saves the compressed file to your Android Downloads folder. The size reduction is shown — typically 30–70% smaller depending on the original content.
The same as on desktop — up to 70–80% for image-heavy PDFs. Text-only PDFs compress very little since text already takes minimal space.
Yes. Compress the PDF to under 100 MB (WhatsApp's document limit), then share directly from the Downloads folder via the WhatsApp share sheet.
No. The compressed PDF is completely clean — no watermarks, no branding, no account required.