Compress PDF
Shrink PDF file size for email attachments, portals, and faster sharing. Choose compression strength based on whether you need maximum quality or the smallest file.
Open Compress PDFFree online PDF utilities
Compress and Resize PDF Online
File size and page size solve different problems. Compress a PDF when the download is too large; resize pages when the physical page dimensions need to change.
Resize PDF
Change PDF page dimensions to A4, Letter, or custom sizes. Standardize mixed documents for printing or professional submission.
Open Resize PDFCrop PDF
Trim white margins and adjust the visible area of each PDF page. Useful for scans, print layouts, and removing unwanted borders.
Open Crop PDFFile size versus page size
Compression reduces the number of bytes in the file, usually by re-encoding page images. Resizing changes dimensions such as A4 or Letter and does not necessarily make a document smaller. Cropping removes visible margins; it can improve a scan but may have little effect on file size.
Choose quality for the destination
- Use recommended compression for email and general sharing
- Use extreme compression or grayscale for strict upload limits
- Keep a higher-quality original for printing and archiving
Choose the right PDF tool
Start with the result you need, then open the focused tool above. Each tool page explains what it changes, where processing happens, and which related utility can help with the next step. Your original file is not modified.