裁剪 PDF

裁剪每个 PDF 页面的边距。

将文件拖到这里

或把文件拖到这里

Free PDF Cropper

Crop PDF Online — Trim Margins in Seconds

Tired of huge white borders or scanned edges getting in the way? Crop your PDF online and keep only the part of the page that matters. Upload a file, drag the crop box to frame the content and download a tidy, trimmed PDF — no software to install and no sign-up.

Online PDF cropper trimming the margins of a PDF page
Why crop PDF here

A PDF Cropper That Frames Every Page Right

Everything you need to crop PDF pages cleanly — free, precise and online.

Trim margins and edges

Drag the crop box to cut away white space and scanned borders so the content fills the page.

Precise crop control

Adjust the crop area by hand or apply the same crop to every page for a perfectly consistent PDF.

Free PDF cropper

Crop PDF free as often as you like — no subscription, no trial and no watermark on the result.

Crop PDF online

An online PDF cropper that runs in any browser on Windows, Mac, Linux, Android and iOS.

Free online PDF cropper feature cards for trimming PDF pages and margins
Step by step

How to Crop a PDF

Crop PDF pages online in three simple steps — no account needed.

Upload your PDF

Drag and drop your file into the PDF cropper, or browse to select a document from your device.

Set the crop area

Drag the crop box around the content you want to keep, and apply it to one page or the whole PDF.

Download the cropped PDF

Save your trimmed file with clean edges, ready to share, print or reuse in seconds.

Upload crop and download steps for cropping a PDF online
Tidy every page

Trim PDF Margins for a Cleaner Document

Scans and exports often carry oversized margins, stray edges or uneven borders. Crop a PDF to trim them away and the page looks deliberate instead of accidental. Reframe a single page or crop them all at once — the text and images you keep stay perfectly sharp, because cropping only changes what is shown, not the quality of what is inside.

Crop PDF pages to remove white space and scanned borders
Apply one crop to every page for a consistent layout
Trim a PDF for tighter printing, slides and screen reading
Trimming the margins of a PDF page to crop it cleanly
Compare

Why Choose Our Free PDF Cropper

See how our online PDF cropper compares with typical desktop editors.

Our cropper
Other tools
Crop PDF free
Paid
Works online, no install
Crop one page or all pages
Limited
Keeps content quality intact
No watermark on output
Works on any device
Desktop only
Use cases

When You Need to Crop a PDF

However you work, a well-framed page reads and prints better.

Clean up scans

Crop a PDF to remove the dark edges and oversized borders that scanners leave behind.

Slides and handouts

Trim PDF pages so figures and charts sit front and center without distracting white space.

Print-ready files

Adjust margins so your document prints exactly the way you want, edge to edge.

Reading on screens

Crop wide PDFs to fit phones and tablets so text fills the screen instead of shrinking.

Scan presentation print and mobile workflows that crop PDF pages
Loved by users

What People Say About Our PDF Cropper

My scanned notes had huge black margins. I cropped the whole PDF at once and it finally looks clean.

GT

Grace Thompson

Graduate Student

The best free PDF cropper I have found. I trimmed every page to the same frame in under a minute, no watermark.

AD

Andre Dubois

Architect

I crop PDF pages before sending plans to print. The edges come out perfect and nothing loses quality.

MT

Mei Tanaka

Print Coordinator

FAQ

Crop PDF — Frequently Asked Questions

Upload your file to the cropper at the top of this page, drag the crop box around the content you want to keep, then download the trimmed PDF. The whole process is free and runs online — no account or software required.

Crop PDF online for free by dropping a document into the cropper
Ready when you are

Crop PDF Free — Start Now

Upload a file and crop your PDF online in seconds. Free, precise and ready to share.

Crop PDF