Will the text become blurry after compression?

Selectable text is usually preserved well, but scanned pages and image-heavy PDFs can lose detail if you choose aggressive compression. Always open the output and check small text, signatures, QR codes, tables, and stamps before sending the compressed file.

Does compression change my original file?

No. The original file stays untouched on your device. PDFTasker exports a new compressed copy, which means you can compare file size and readability before deciding what to send. Keep the source until the recipient accepts the final version.

Why bother doing this locally?

Local compression is useful when the PDF contains personal, client, legal, medical, financial, or application data. The file still needs to become smaller, but it does not need a server upload just to fit an email limit or portal limit.

Compress PDFs in your browser

Sending a document to a compression server means trusting someone else with the file, the logs, and the deletion policy. PDFTasker keeps compression on your device, then asks you to inspect the result instead of chasing the smallest possible number.

How-to guides

Step-by-step guides

01
Open the compression tool
Add the PDF file you want to shrink.
02
Pick a mode
Choose lossless optimization for safer size reduction or maximum compression for a smaller file.
03
Save the result
Download the compressed PDF and move on.

Frequently asked questions

Will the text become blurry after compression?: Selectable text is usually preserved well, but scanned pages and image-heavy PDFs can lose detail if you choose aggressive compression. Always open the output and check small text, signatures, QR codes, tables, and stamps before sending the compressed file.
Does compression change my original file?: No. The original file stays untouched on your device. PDFTasker exports a new compressed copy, which means you can compare file size and readability before deciding what to send. Keep the source until the recipient accepts the final version.
Why bother doing this locally?: Local compression is useful when the PDF contains personal, client, legal, medical, financial, or application data. The file still needs to become smaller, but it does not need a server upload just to fit an email limit or portal limit.