Large PDFs can be difficult to email or upload. This tool attempts to reduce file size where its supported processing can do so; the reduction depends on the contents of the file.
Doc Writer Lab is designed for quick everyday document tasks. You do not need to create an account to open the tool.
Open Compress PDF →When processing finishes, save the output and open it once to confirm it looks right.
Not every PDF can be made significantly smaller. Keep the original and check the output before sending it. Keep a copy of your original file until you have checked the result. Avoid using public computers for sensitive documents.
Read the Privacy Policy for more information.
Compressing a PDF can make it easier to email, upload to a form or store on a device with limited space. Results depend on images and existing optimisation.
Scanned documents and image-heavy PDFs may shrink more than files that already contain compressed images. Check any upload size limit before submitting.
Select the PDF, run compression and download the processed copy. Compare small text, diagrams, photographs and page orientation against the original.
Compression can affect image quality and some workflows may rasterise page content. Keep the original and test text selection if it matters.
Will every PDF become smaller? Not necessarily. Is selectable text always preserved? No, so inspect the output if searchable text matters.
Keep a backup and check the final result before sharing. Visit the Doc Writer Lab homepage or browse all PDF guides.
Explore the Doc Writer Lab homepage for PDF utilities, text tools, and calculators.
Start now →