Need to trim margins from a PDF, cut out a specific section, or resize pages before printing? Cropping a PDF shouldn’t require expensive software. I tested 19 tools over the past month to find the ones that actually work without destroying your layout or degrading quality.
If you’re working with PDFs regularly, you might also want to check our full roundup of the best free PDF editors – it covers broader editing beyond just cropping.
Quick Comparison Table
| Tool | Type | Max File Size | Batch Crop | Price | Best For |
|---|---|---|---|---|---|
| Sejda | Online + Desktop | 50 MB (free) | Yes | Free (3 tasks/day) | Quick online crops |
| PDF Candy | Online + Desktop | 44 MB (free) | Yes | Free (1 task/hr) | Visual cropping |
| Adobe Acrobat Online | Online | 100 MB | No | Free (limited) | Precise margins |
| PDF24 | Online + Desktop | Unlimited | Yes | 100% Free | Unlimited batch work |
| Briss | Desktop (Java) | Unlimited | Yes | 100% Free, Open Source | Bulk academic papers |
| LibreOffice Draw | Desktop | Unlimited | No | 100% Free, Open Source | Manual precision edits |
| UPDF | Desktop + Mobile | Unlimited | Yes | Free (watermark) | Cross-platform workflow |
| Foxit PDF Editor | Desktop | Unlimited | Yes | 14-day trial | Professional batch crops |
What Does “Cropping a PDF” Actually Mean?
Before jumping into tools, a quick clarification. PDF cropping works differently than image cropping. When you crop a PDF page, you’re adjusting the visible area – the CropBox – but the original content usually stays in the file. Some tools actually remove the hidden content, others just mask it. This matters if you’re cropping sensitive information. I’ll note which tools do true content removal vs. visual masking for each option below.
Also worth knowing: cropping affects all elements on the page – text, images, annotations. If your text runs close to the edge you’re trimming, you’ll lose it.
1. Sejda – Best for Quick Online Crops
Sejda has been my go-to for one-off PDF crops since 2023. The interface loads fast, lets you drag crop handles visually, and processes files without noticeable quality loss.
How to crop with Sejda
Go to sejda.com/crop-pdf, upload your file, then drag the blue rectangle to define your crop area. You can apply the same crop to all pages or set different crops per page. Hit “Crop PDF” and download.
The free tier gives you 3 tasks per day with a 50 MB / 200 page limit. For most people that’s plenty. Files are deleted from their servers after 2 hours.
Pros
- Visual drag-and-drop interface, no learning curve
- Per-page or all-pages crop options
- Preserves hyperlinks and form fields
- Works on phone browsers too
Cons
- 3 tasks/day limit on free plan
- 50 MB cap means large scanned documents won’t work
- Does visual masking, not true content removal
2. PDF Candy – Best Visual Cropping Experience
PDF Candy surprised me. The crop tool shows a live preview of every page, and you can set exact pixel dimensions or percentages for margins. Honestly, the visual feedback is better than Sejda’s.
The catch: free users get 1 task per hour. If you’re cropping a single document, that’s fine. If you have a batch of 10 files, you’ll either need patience or the $6/month premium plan.
Pros
- Clean visual interface with exact margin controls
- Shows real-time preview before processing
- Desktop app available for Windows
Cons
- 1 task per hour on free tier – frustrating for batch work
- 44 MB file limit on free plan
3. Adobe Acrobat Online – Precise Margin Control
Adobe’s free online tools have gotten surprisingly capable. The crop function lets you set exact margin values in inches, centimeters, or points. You need an Adobe account (free), but it works.
I used this when I needed to crop a legal document to exact court-filing specifications. The margin precision was spot on. But you can’t crop multiple pages differently in one go – it’s the same crop for all pages or nothing.
Pros
- Exact numeric margin input (inches/cm/points)
- No quality degradation whatsoever
- Trusted brand, secure file handling
Cons
- Requires free Adobe account
- Same crop for all pages, no per-page control
- Pushes Acrobat Pro subscription after every use
4. PDF24 – Best Completely Free Option (No Limits)
Here’s the thing about PDF24: it’s genuinely free with no task limits, no file size caps, no watermarks. The German company behind it makes money from printer-related products, so the PDF tools are a loss leader. I’ve been recommending PDF24 for compressing PDFs too, and the crop tool is equally solid.
The crop interface is basic – you enter margin values rather than dragging a visual box. Not as intuitive as Sejda or PDF Candy, but for batch jobs where you know your dimensions, it’s faster.
Pros
- Truly unlimited – no caps on tasks, file size, or pages
- No account required
- Desktop app (Windows) for offline work
- Also has a full PDF toolkit (merge, split, compress, convert)
Cons
- Margin input only, no visual drag handles
- Desktop app is Windows-only
- Interface feels dated compared to Sejda
5. Briss – Best for Bulk Academic Papers (Open Source)
Briss is a weird little tool, and I mean that as a compliment. It’s a Java-based desktop app that automatically detects content areas on your PDF pages and suggests crop boundaries. You see an overlay of all pages stacked together, so you can set one crop that works for every page’s content.
This is specifically amazing for academic papers. You know how journal PDFs have massive margins, headers, footers, and page numbers eating up screen space? Load the PDF into Briss, and it shows you exactly where the actual text sits across all pages. Set your crop once, done.
I cropped a 340-page textbook with it in under 2 minutes. The same job took me 20+ minutes page-by-page with online tools.
Pros
- Auto-detects content boundaries across all pages
- Overlays all pages for consistent cropping
- No file size limits, works offline
- Free and open source (Java, runs anywhere)
Cons
- Requires Java Runtime installed
- UI looks like it was built in 2009 (because it was)
- No undo – save to a new file to be safe
- Last official release was years ago, though community forks exist
6. LibreOffice Draw – Manual Precision When You Need It
Not obvious, but LibreOffice Draw opens PDFs and lets you manipulate individual elements. For cropping, you can adjust the page size and reposition content manually. It’s overkill for simple margin trimming, but if you need to crop one specific area on one specific page while leaving others untouched, it handles that.
Fair warning: LibreOffice converts the PDF to its internal format on import. Complex layouts with embedded fonts sometimes shift slightly. Always check the output. For simple documents and forms, it works perfectly fine.
Pros
- Element-level control over page content
- Can crop different areas on different pages
- Free, open source, cross-platform (Windows, Mac, Linux)
Cons
- Not a dedicated PDF tool – workflow is indirect
- May alter complex layouts during import
- Slow for documents over 50 pages
7. UPDF – Best Cross-Platform Option
UPDF has native apps for Windows, Mac, iOS, and Android. The crop feature works identically on all platforms, which is handy if you start a crop on your laptop and want to verify the result on your phone before sending.
The free version adds a small UPDF watermark to exported files. For internal use, that’s fine. For client-facing documents, you’d need the $39.99/year plan. The crop tool itself is smooth – visual handles, numeric input, per-page settings, the works.
Pros
- Native apps on all platforms with synced workflow
- Both visual and numeric crop controls
- Batch crop across selected pages
Cons
- Watermark on free exports
- $39.99/year for watermark-free output
8. Foxit PDF Editor – Professional Batch Cropping
Foxit’s 14-day free trial includes full crop functionality. If you have a one-time batch job – say, standardizing margins across 50 documents for a client delivery – the trial period covers it.
The crop tool is professional-grade. You set the CropBox, TrimBox, BleedBox, and ArtBox independently. You can remove cropped content permanently (not just mask it). And the batch processing handles hundreds of files with consistent settings.
Pros
- Full Box-level control (CropBox, TrimBox, BleedBox, ArtBox)
- True content removal, not just visual masking
- Batch processing with saved presets
Cons
- Free trial only (14 days), then $159.99/year
- Heavy install (~500 MB)
How to Crop a PDF Online (Step-by-Step with PDF24)
Since PDF24 is the only truly free option with no limits, here’s the full walkthrough:
- Go to tools.pdf24.org/en/crop-pdf
- Click “Choose files” and upload your PDF (or drag and drop)
- Set your crop margins – top, bottom, left, right in millimeters
- Choose whether to apply to all pages or specific page ranges
- Click “Crop” and wait for processing
- Download the cropped file
The whole process takes under 30 seconds for a standard document. For scanned PDFs over 100 MB, expect a minute or two for upload plus processing.
How to Crop a PDF in Preview (Mac Users)
Mac users have a built-in option that most guides don’t mention properly. Preview can crop PDFs, but the process is slightly unintuitive:
- Open the PDF in Preview
- Click the “Show Markup Toolbar” button (pencil icon)
- Select the rectangular selection tool
- Draw a rectangle around the area you want to keep
- Go to Tools > Crop (or press Cmd+K)
Important caveat: Preview’s crop is non-destructive. The cropped content is hidden, not deleted. If someone opens the file in another PDF viewer, they might still see the original content. If privacy matters, use a tool that does true content removal like Foxit or re-export through PDF24.
Cropping PDF on Mobile (iPhone and Android)
Your phone can handle basic PDF crops without installing anything extra.
iPhone/iPad: The Files app doesn’t have a built-in crop for PDFs. Use the Markup tool in Files to annotate, but for actual cropping you’ll need a third-party app. UPDF (free with watermark) or PDF Expert ($79.99/year) are the cleanest options.
Android: Google Drive’s built-in PDF viewer doesn’t support cropping. Xodo (free) or UPDF work well. Xodo’s crop tool is surprisingly capable for a free mobile app – visual handles, per-page control, no watermarks on the crop function specifically.
Tips for Better PDF Cropping Results
Always save to a new file. Never overwrite the original. If your crop cuts off important content, you’ll want the original intact.
Check every page after cropping. If your document has mixed page orientations (portrait and landscape), a uniform crop will butcher the landscape pages. Use per-page crop settings or split the document first.
For printing: account for printer margins. Most printers can’t print to the absolute edge. If you’re cropping margins down to zero and then printing, you’ll lose the outermost 3-5mm of content. Leave at least a 5mm margin if the document is going to paper. Check our guide on compressing PDFs if your cropped file is still too large for email.
Scanned PDFs crop differently. A scanned PDF is basically a stack of images. Cropping removes pixels permanently in most tools. Make sure your scan resolution is high enough that the cropped area still looks sharp – 300 DPI minimum for text-heavy scans.
When Cropping Won’t Solve Your Problem
Sometimes what looks like a cropping job is actually something else:
- Need to remove specific text? That’s redaction, not cropping. Use a redaction tool that actually removes the content from the file data.
- Need to resize pages? Cropping reduces the visible area. If you need pages to be a different size while keeping all content, you need a “resize” or “fit to page” tool instead.
- Need to remove headers/footers? Cropping can do this, but you’ll lose top/bottom margins too. Look for a dedicated header/footer removal tool, or edit the PDF directly to delete those elements.
- Need to extract one page? That’s splitting, not cropping. Check our guide on how to split PDF files free.
Frequently Asked Questions
Is cropping a PDF the same as trimming margins?
Yes and no. Trimming margins is the most common use of PDF cropping. But cropping can also mean selecting a specific rectangular area from the middle of a page. Most tools handle both scenarios with the same crop function – you just set different margin values.
Can I crop a PDF without losing quality?
For vector-based PDFs (created from Word, Google Docs, or similar), cropping never affects quality. The text and graphics remain sharp at any zoom level. For scanned PDFs (raster images), cropping doesn’t reduce the resolution of the remaining content – you just end up with a smaller visible area at the same DPI.
Is there a way to crop a PDF for free with no watermark?
PDF24, Briss, and LibreOffice Draw all crop PDFs with zero watermarks and zero cost. PDF24 is the easiest of these. Sejda and Adobe Acrobat Online also produce watermark-free output but have task limits per day.
Can I undo a PDF crop after saving?
Depends on the tool. Preview (Mac), Sejda, and most online tools do non-destructive cropping – the hidden content stays in the file and can be “uncropped” by tools that modify the CropBox. Foxit and some desktop editors can do destructive crops that permanently remove content. When in doubt, save to a new file and keep the original.
How do I crop all pages in a PDF to the same size?
Every tool in this list supports “apply to all pages.” In Sejda, set your crop rectangle on the first page and click “Apply to all.” In PDF24, the margin values apply globally by default. Briss does this automatically by overlaying all pages and letting you draw one crop box that covers everything.
Can I crop a PDF on my phone?
Yes. UPDF (iOS and Android, free with watermark) and Xodo (Android, free without watermark) both have crop tools that work well on mobile. For iPhone users who want a free option without watermarks, use the PDF24 website through Safari – it works on mobile browsers.