PDF Tools — All-in-One PDF Editor
Compress, merge, split, protect, and edit PDF files directly in your browser. No software to install.
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Also convert PDF to other formats
Why CoreConverter PDF tools?
- ✓ Powered by Stirling PDF — the most advanced open-source PDF processor
- ✓ No quality loss on compression — intelligent PDF optimization
- ✓ Files automatically deleted after 24 hours
- ✓ GDPR-compliant — no data shared with third parties
- ✓ Free plan includes 3 operations. Pro: unlimited.
Frequently asked questions
How do I merge PDF files online?
Use the Merge PDF tool: upload multiple PDF files, arrange them in your desired order, and click merge. Your combined PDF is ready to download instantly.
Does PDF compression affect quality?
CoreConverter uses Stirling PDF's intelligent compression, which reduces file size while preserving visual quality. No visible quality loss for standard documents and presentations.
Can I split a PDF into individual pages?
Yes. The Split PDF tool separates each page of your PDF into individual PDF files. You can also specify a custom page range.
How do I protect a PDF with a password?
Use the Protect PDF tool: upload your PDF, enter the password you want to set, and download the protected file. The password is applied using AES-256 encryption.
Are my PDF files deleted after processing?
Yes. All files are automatically deleted 24 hours after processing. No data is shared with third parties. CoreConverter is GDPR-compliant.
How do I merge PDF files online?
Use the Merge PDF tool: upload multiple PDF files, arrange them in your desired order, and click merge. Your combined PDF is ready to download instantly.
Does PDF compression affect quality?
CoreConverter uses Stirling PDF's intelligent compression, which reduces file size while preserving visual quality. No visible quality loss for standard documents and presentations.
Can I split a PDF into individual pages?
Yes. The Split PDF tool separates each page of your PDF into individual PDF files. You can also specify a custom page range.
How do I protect a PDF with a password?
Use the Protect PDF tool: upload your PDF, enter the password you want to set, and download the protected file. The password is applied using AES-256 encryption.
Are my PDF files deleted after processing?
Yes. All files are automatically deleted 24 hours after processing. No data is shared with third parties. CoreConverter is GDPR-compliant.
How do I merge PDF files online?
Use the Merge PDF tool: upload multiple PDF files, arrange them in your desired order, and click merge. Your combined PDF is ready to download instantly.
Does PDF compression affect quality?
CoreConverter uses Stirling PDF's intelligent compression, which reduces file size while preserving visual quality. No visible quality loss for standard documents and presentations.
Can I split a PDF into individual pages?
Yes. The Split PDF tool separates each page of your PDF into individual PDF files. You can also specify a custom page range.
How do I protect a PDF with a password?
Use the Protect PDF tool: upload your PDF, enter the password you want to set, and download the protected file. The password is applied using AES-256 encryption.
Are my PDF files deleted after processing?
Yes. All files are automatically deleted 24 hours after processing. No data is shared with third parties. CoreConverter is GDPR-compliant.
How do I merge PDF files online?
Use the Merge PDF tool: upload multiple PDF files, arrange them in your desired order, and click merge. Your combined PDF is ready to download instantly.
Does PDF compression affect quality?
CoreConverter uses Stirling PDF's intelligent compression, which reduces file size while preserving visual quality. No visible quality loss for standard documents and presentations.
Can I split a PDF into individual pages?
Yes. The Split PDF tool separates each page of your PDF into individual PDF files. You can also specify a custom page range.
How do I protect a PDF with a password?
Use the Protect PDF tool: upload your PDF, enter the password you want to set, and download the protected file. The password is applied using AES-256 encryption.
Are my PDF files deleted after processing?
Yes. All files are automatically deleted 24 hours after processing. No data is shared with third parties. CoreConverter is GDPR-compliant.
Are my PDF files deleted after processing?
Yes. All files are automatically deleted 24 hours after processing. No data is shared with third parties. CoreConverter is GDPR-compliant.
How do I protect a PDF with a password?
Use the Protect PDF tool: upload your PDF, enter the password you want to set, and download the protected file. The password is applied using AES-256 encryption.
Can I split a PDF into individual pages?
Yes. The Split PDF tool separates each page of your PDF into individual PDF files. You can also specify a custom page range.
Does PDF compression affect quality?
CoreConverter uses Stirling PDF's intelligent compression, which reduces file size while preserving visual quality. No visible quality loss for standard documents and presentations.
How do I merge PDF files online?
Use the Merge PDF tool: upload multiple PDF files, arrange them in your desired order, and click merge. Your combined PDF is ready to download instantly.
Are my PDF files deleted after processing?
Yes. All files are automatically deleted 24 hours after processing. No data is shared with third parties. CoreConverter is GDPR-compliant.
How do I protect a PDF with a password?
Use the Protect PDF tool: upload your PDF, enter the password you want to set, and download the protected file. The password is applied using AES-256 encryption.
Can I split a PDF into individual pages?
Yes. The Split PDF tool separates each page of your PDF into individual PDF files. You can also specify a custom page range.
Does PDF compression affect quality?
CoreConverter uses Stirling PDF's intelligent compression, which reduces file size while preserving visual quality. No visible quality loss for standard documents and presentations.
How do I merge PDF files online?
Use the Merge PDF tool: upload multiple PDF files, arrange them in your desired order, and click merge. Your combined PDF is ready to download instantly.
Are my PDF files deleted after processing?
Yes. All files are automatically deleted 24 hours after processing. No data is shared with third parties. CoreConverter is GDPR-compliant.
How do I protect a PDF with a password?
Use the Protect PDF tool: upload your PDF, enter the password you want to set, and download the protected file. The password is applied using AES-256 encryption.
Can I split a PDF into individual pages?
Yes. The Split PDF tool separates each page of your PDF into individual PDF files. You can also specify a custom page range.
Does PDF compression affect quality?
CoreConverter uses Stirling PDF's intelligent compression, which reduces file size while preserving visual quality. No visible quality loss for standard documents and presentations.
How do I merge PDF files online?
Use the Merge PDF tool: upload multiple PDF files, arrange them in your desired order, and click merge. Your combined PDF is ready to download instantly.
Are my PDF files deleted after processing?
Yes. All files are automatically deleted 24 hours after processing. No data is shared with third parties. CoreConverter is GDPR-compliant.
How do I protect a PDF with a password?
Use the Protect PDF tool: upload your PDF, enter the password you want to set, and download the protected file. The password is applied using AES-256 encryption.
Can I split a PDF into individual pages?
Yes. The Split PDF tool separates each page of your PDF into individual PDF files. You can also specify a custom page range.
Does PDF compression affect quality?
CoreConverter uses Stirling PDF's intelligent compression, which reduces file size while preserving visual quality. No visible quality loss for standard documents and presentations.
How do I merge PDF files online?
Use the Merge PDF tool: upload multiple PDF files, arrange them in your desired order, and click merge. Your combined PDF is ready to download instantly.