Frequently Asked Questions

Find answers to common questions about our PDF and image tools

General Questions

Is PDF Modifier really free?

Yes, completely free. All tools are available without registration, payment, or hidden fees. There are no watermarks added to your files.

Do I need to create an account?

No. You can use all tools anonymously. We don't require email, registration, or any personal information.

What devices can I use?

Any device with a web browser - Windows, Mac, Linux, iPhone, Android, tablets. No app installation required.

Are there file size limits?

Most tools support files up to 100MB. Some tools may have lower limits depending on the operation complexity.

Privacy & Security

Are my files safe?

Yes. Your files are encrypted during transfer, processed securely, and automatically deleted within 1 hour. We never access, share, or store your content.

Do you store my files?

No. Files are temporarily processed and permanently deleted within 1 hour. We do not maintain any backup or archive of your files.

Who can see my files?

No one. Files are processed automatically by our servers. Our staff never accesses user content. Some tools use third-party APIs which process and delete files immediately.

Is my data sold to third parties?

Never. We do not sell, trade, or share your personal information or files with anyone. Read our Privacy Policy for full details.

PDF Tools

What PDF operations do you support?

We support:

  • Merge multiple PDFs into one
  • Split PDF into separate pages
  • Compress PDF to reduce file size
  • Convert PDF to/from Word, Excel, PowerPoint, images, HTML
  • Edit PDFs (add text, images, annotations)
  • Password protect or unlock PDFs
  • Add watermarks and page numbers
  • Rotate, crop, and resize PDF pages
Can I edit existing text in a PDF?

Yes. Our PDF Editor allows you to click on existing text and edit it directly. You can also add new text, images, shapes, and annotations. Note: fonts may vary slightly from the original depending on availability.

How do I merge multiple PDFs?

Go to Merge PDF, upload your files, arrange them in the desired order by dragging, then click "Merge PDF" to download the combined file.

Will compression reduce my PDF quality?

Our compression intelligently reduces file size while maintaining readability. You can choose between different compression levels. Most documents show no visible quality loss after compression.

Image Tools

What image formats do you support?

We support JPG, JPEG, PNG, GIF, WebP, BMP, TIFF, and SVG. You can convert between any of these formats.

How do I reduce image file size?

Use our Compress Image tool. Upload your image, choose compression quality, and download the optimized version.

Can I convert images to PDF?

Yes. Use our Image to PDF tool. Upload multiple images, arrange them in order, and convert to a single PDF document.

Billing & Usage

Is there a daily limit?

We apply fair-use limits to prevent abuse. Most users will never hit these limits. If you need higher limits, please contact us.

How can I contact support?

For any questions or issues, reach out through our website. We aim to respond within 24 hours.

Still have questions?

Can't find the answer you're looking for? Contact our support team.

Contact Us