The simplest way depends on what you have on your computer
You can delete pages from a PDF using free software that's already on most computers, or through online tools that work in your browser. The fastest route is usually your operating system's built-in PDF reader — Windows 11 has Microsoft Edge, macOS has Preview — but they have limits. If you need to delete pages regularly or work with large files, a dedicated PDF tool like Adobe Acrobat Reader (free version), PDFtk, or Smallpdf gives you more control and speed.
The method you choose matters because some tools let you delete and save in seconds, while others require extra steps or won't save your changes at all. Some are free but limited to a few pages per month. Others cost money but work offline without uploading your file to the internet.
Key Takeaways
- Windows 11's Microsoft Edge and macOS Preview can delete pages for free, but you must save the result as a new file rather than overwriting the original.
- Adobe Acrobat Reader's free version lets you delete pages and save them back to the same file, making it faster than your operating system's reader.
- Online tools like Smallpdf, ILovePDF, and PDF.io work in your browser and require no installation, but they upload your file to their servers and often limit free users to a few operations per month.
- If you delete pages regularly or work with sensitive documents, a desktop tool keeps your files on your computer and doesn't count against monthly limits.
Using your operating system's PDF reader
Windows 11: Open your PDF in Microsoft Edge (the default for PDFs). Right-click the page thumbnail on the left side, select "Delete", then go to File > Save As and choose a new filename. Edge will not let you overwrite the original file this way — you must save it with a different name or in a different folder.
macOS: Open your PDF in Preview (the default). Click the thumbnail view icon in the toolbar, then right-click the pages you want to remove and select "Delete". Go to File > Export and save the result as a new PDF. Like Edge, Preview requires you to save under a new name.
This method is free and requires no new software, but the extra "Save As" step means you end up with two copies of your file — the original and the edited version. If you delete pages from the same PDF multiple times, your hard drive fills with duplicates.
Using Adobe Acrobat Reader (free version)
read Adobe Acrobat Reader from adobe.com. Open your PDF, click the three-line menu in the top right, select "Organize Pages", then click the trash icon on any page thumbnail to delete it. When you close the file, Reader asks whether to save changes — click "Save" to overwrite the original file.
This is faster than your operating system's reader because you don't need the "Save As" step. You can delete multiple pages in one session and save them all at once. The free version has no monthly limits and works offline.
The trade-off is that Adobe Acrobat Reader is a larger read (around 200 MB) than what you already have. If you only delete pages once or twice a year, your operating system's reader is probably enough.
Using online PDF tools
Tools like Smallpdf, ILovePDF, and PDF.io work entirely in your browser. Go to their website, upload your PDF, click the pages you want to delete, then read the result. No installation needed.
Free accounts usually allow 2 to 5 operations per month before you hit a limit. If you need more, you pay a monthly subscription (typically $6 to $10). Some tools let you delete pages without uploading — they process the file in your browser instead — but most upload to their servers, which means your document leaves your computer.
Online tools are useful if you're on a shared computer where you can't install software, or if you're working on a phone or tablet. They're not ideal for sensitive documents, large files, or frequent use, because uploads are slow and monthly limits add up quickly.
Comparing the four main routes
| Method | Cost | Installation | Overwrites original | Monthly limit |
|---|---|---|---|---|
| Windows Edge or macOS Preview | Free | None (built-in) | No — saves as new file | None |
| Adobe Acrobat Reader | Free | 200 MB read | Yes | None |
| Smallpdf, ILovePDF, PDF.io | Free (limited) or $6–$10/month | None (browser-based) | Yes | 2–5 per month (free tier) |
| PDFtk, Ghostscript (command line) | Free | Installation required | Yes | None |
When to use each method
Use your operating system's reader if you delete pages once or twice a year and don't mind having two copies of the file. It's the fastest to start because nothing needs to be installed.
Use Adobe Acrobat Reader if you delete pages a few times a month or want to overwrite the original file without extra steps. It's the middle ground between convenience and speed.
Use an online tool if you're on a shared computer, working on a phone, or need to delete pages from a PDF you received via email and don't want to save to your hard drive. Accept that your file uploads to their servers and that you'll hit monthly limits if you do this often.
Use PDFtk or Ghostscript (command-line tools) only if you delete pages from dozens of PDFs automatically or work with very large files. These require typing commands rather than clicking buttons, so they're not for most people.
Avoiding common mistakes
The most common mistake is not realizing your operating system's reader creates a new file. You delete pages, save, and think you've edited the original — but you've actually created a duplicate with a slightly different name. Check your folder afterward to confirm you have the file you want.
Another mistake is uploading sensitive documents to an online tool without reading their privacy policy. Most reputable tools (Smallpdf, ILovePDF) delete files from their servers after a few hours, but some keep them longer. If your PDF contains personal information, tax documents, or medical records, use a desktop tool instead.
A third mistake is assuming the free tier of an online tool will cover your needs. If you delete pages from 10 PDFs in a month, you'll hit the 5-operation limit on most free accounts and need to pay or wait until next month.
Frequently Asked Questions
Can I delete pages from a PDF on my phone?
Yes, using an online tool like Smallpdf or ILovePDF in your phone's browser. Some phones also have built-in PDF readers — iOS has Books, Android has Google Play Books — but they don't let you delete pages. Desktop tools like Adobe Acrobat Reader have mobile versions, but the free versions don't include the delete feature on phones.
What if I delete pages by mistake?
If you saved the result, go back to your original file (your operating system's reader and online tools create a new file, so the original is still there). If you overwrote the original in Adobe Acrobat Reader, you can undo the deletion if you haven't closed the file yet — press Ctrl+Z (Windows) or Command+Z (Mac). Once you close the file, the deletion is permanent unless you have a backup.
Can I delete pages from a password-protected PDF?
Not without the password. If the PDF is locked, your PDF reader will tell you when you try to open it. You need the password to unlock it before you can delete pages. If you've forgotten the password, you'll need to contact whoever created the PDF or use a password recovery tool.
Does deleting pages reduce the file size?
Usually yes, but not always by much. A PDF with 100 pages that's 10 MB will be smaller after you delete 50 pages, but the reduction depends on what's on each page. A page with a high-resolution photo takes up much more space than a page with text. If file size is your main concern, compression tools work better than deletion.
Can I delete pages from a scanned PDF?
Yes — the method is the same whether the PDF is scanned (images) or text-based. Scanned PDFs are usually larger files, so deletion saves more space. The deletion process doesn't change the quality of the remaining pages.