Compress a PDF to Under 25 MB — Free, No Watermark
Need a PDF under 25 MB to clear Gmail's 25 MB attachment limit (Outlook caps lower, at 20 MB)? This tool targets 25 MB for you automatically — open it from this page and the target size is already set. It uploads your file and searches for the highest image quality that still fits under 25 MB, using a professional Ghostscript engine that keeps your text selectable and searchable the whole time. No watermarks, no daily caps, no signup.
Can you get a PDF under 25 MB?
Clearing a 25 MB cap is comfortably within reach for almost any document. You don't pick a compression level — the tool automatically finds the setting that lands under 25 MB at the best possible quality, and shows you the exact final size along with a "target met" confirmation. Only very large, image-heavy scans are a challenge; if one can't reach 25 MB without becoming unreadable, the tool returns the smallest version it can and tells you honestly.
How to compress a PDF under 25 MB
Three steps — no signup, no installation.
- 1
Open the compressor
This page opens the Compress PDF tool with the target size already set. Drag your file in (or click to browse). You can add several files at once — images and Word/Excel/PowerPoint documents are accepted too and converted to PDF automatically.
- 2
Confirm the 25 MB target
The target size is preset to 25 MB — there's no compression level to pick. Leave it as is, or use the size picker to choose a different target. Your text stays selectable no matter how small the target; only images are downsampled.
- 3
Compress & download
Click Compress. The tool searches for the best quality that still fits under 25 MB, shows the exact final size and whether the target was met, and lets you download each file individually or all at once as a ZIP.
How it hits 25 MB — the levels, handled for you
You don't choose one — targeting 25 MB auto-searches these image-quality levels for the best one that still fits. Text stays selectable at every level; only images are downsampled. For under 25 MB it typically lands near Low.
Low
Typical for 25 MB300 dpi
Best quality — for printing
Medium
150 dpi
Balanced — email & uploads
Maximum
72 dpi
Smallest file — tight limits
Compress a PDF to another size
Aiming for a different limit? Jump to the guide for your exact target.
Frequently asked
Common questions about compressing a PDF under 25 MB.
Yes. This page opens the compressor with the target preset to 25 MB, so you just click Compress — the tool automatically searches for the highest image quality that still fits under 25 MB and applies it. You never pick a compression level yourself. It then shows the exact final size and confirms whether 25 MB was met.
Almost always because it's a large, image-heavy scan. Photos and scanned pages are stored at high resolution, and a stack of them can't always be squeezed to 25 MB without becoming unreadable. The tool already pushes to its smallest setting automatically; when even that can't reach 25 MB, it returns the smallest possible version and tells you honestly. Split the PDF into smaller files with our Split PDF tool and compress each part — a few small files under 25 MB is usually more useful than one that won't fit anyway.
Yes. Unlike compressors that flatten each page into an image, we use Ghostscript, which keeps your text as real, selectable, searchable text and only downsamples the images. Your compressed PDF stays a proper document however small the target.
You're aiming to stay under 25 MB, which covers Gmail's 25 MB attachment limit (Outlook caps lower, at 20 MB). Gmail allows attachments up to 25 MB and Outlook up to 20 MB; many contact forms and government portals are stricter, at 5–10 MB. Targeting 25 MB clears these limits automatically for almost any document.
Yes — completely free, with no watermark, no daily cap, and no signup. Your file is uploaded over HTTPS, compressed, streamed back, and deleted from our servers immediately. Compress as many files as you like.
Ready to shrink your PDF?
Batch-compress up to 20 files, keep your text selectable, and download each or all as a ZIP — free, no watermark, no signup.