Compress PDFs to fit a 1MB upload limit. 1MB accommodates comprehensive multi-page documents with embedded images, signatures and formatted content with room to spare.
1MB is generous enough for full-featured PDFs: 10–20 pages of text, multiple high-quality images, embedded fonts, and forms. Common limit for academic submissions, professional portfolio uploads, and detailed report submissions to corporate or government portals.
Choose your PDF and click. Object-stream compression applies losslessly. PDFs under 1MB get a small reduction; larger PDFs (typically 2–5MB) often shrink by 20–40% with the lossless pass alone.
Use it for academic paper submissions, portfolio uploads, project reports for corporate clients, e-tender bids, and detailed government applications. 1MB is also the default email attachment threshold for many corporate mail systems.
For PDFs that won't fit even at 1MB, the bottleneck is almost always uncompressed images. Use a desktop tool that supports image down-sampling (Adobe Acrobat's Save As Optimized) — typical 70–90% size reduction for image-heavy PDFs.
Yes — object-stream compression is lossless. Quality is unchanged.
Yes — with good source-image preparation. Photos at 70% JPG quality and 1024×768 dimension fit comfortably.
Scanners default to 300 DPI colour. Re-scan at 150 DPI grayscale for 4× size reduction.
Explore more pdf tools on the tool hub — or jump straight to the Merge PDF, Rotate PDF, Unlock PDF.