使用Adobe Acrobat裁剪PDF文件非常簡單，適合修剪頁邊距、隱藏部分內容或準備打印。首先打開PDF並進入“工具>編輯PDF>裁剪頁面”，可通過設定具體尺寸或拖動預覽框調整裁剪區(qū)域；若需統(tǒng)一應用於所有頁面，勾選“應用於所有頁面”後確認並另存文件。其次如需對不同頁面進行不同裁剪，取消勾選“應用於所有頁面”後逐頁手動調整即可，適用於佈局不一致的文檔。最後注意裁剪後可能出現空白邊緣或佈局偏移問題，建議保存時選擇“另存為其他>減小大小的PDF”或檢查文檔屬性中的頁面顯示設置，確保頁面尺寸符合預期，並在標準PDF查看器中預覽效果以避免顯示異常。

Cropping a PDF in Adobe Acrobat is actually pretty straightforward once you know where to find the right tools. Whether you're trimming margins, hiding parts of a document, or preparing a file for printing, the crop tool in Acrobat gives you precise control without needing extra software.

Use the Crop Tool in Acrobat Pro

Adobe Acrobat Pro has a built-in crop feature that's easy to use and works directly on your PDF pages. Here's how to do it:

• Open your PDF in Adobe Acrobat Pro.
• Go to Tools > Edit PDF > Crop Pages .
• You'll see a dialog box where you can set exact measurements or drag the handles on the page preview to adjust the crop area.
• If you want the same crop applied to all pages, make sure "Apply to All Pages" is checked.
• Click OK, then save the file under a new name to keep the original intact.

This method is best when you need consistent cropping across multiple pages or have specific dimensions in mind.

Adjust Individual Pages Differently

Sometimes not every page needs the same crop — maybe one page has a larger image or different margins. Acrobat lets you crop individual pages separately:

• Follow the same steps as above but uncheck "Apply to All Pages".
• You can manually adjust each page by dragging the crop box or entering custom values.
• This is useful for documents like scanned forms or multi-page reports where layout varies.

It might take a little longer, but it gives you more flexibility if your PDF isn't uniform from page to page.

Watch Out for Hidden Margins and Print Settings

After cropping, you might notice unexpected white space or layout shifts when printing or sharing the file. That's usually due to how Acrobat interprets page size and print settings:

• When saving, go to File > Save As Other > Reduced Size PDF , or check the Page Display & Presentation settings under Document Properties.
• Make sure the Page Size matches what you expect after cropping.
• Some viewers (especially mobile ones) may still show blank edges if they default to “Fit Page” or “Two-Up” views.

If you're sending this to someone else, it's a good idea to double-check how it looks in both Acrobat and a standard PDF viewer like Preview or Chrome's PDF reader.

基本上就這些。只要熟悉工具位置和a few small gotchas with display settings，crop 就不難了。

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