Help center
Answers to common questions about RatPDF tools, file limits, privacy, and subscriptions.
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Frequently asked questions
Open the Compress PDF tool, upload your file, choose a compression level (Medium works for most emails), and download the result. See our compression guide for size targets like 200 KB or 1 MB.
Scanned PDFs and complex layouts (multi-column tables, embedded fonts) are harder to convert. Digital PDFs with real text usually convert well. Try our PDF to Word tool — it uses pdf2docx first and falls back to page rendering. Read the full conversion guide for troubleshooting.
Most PDF tools upload files over HTTPS to our Azure cloud servers for processing. Files are stored temporarily and deleted automatically. Lightweight utilities like JSON formatters may run entirely in your browser. See our Security policy and Privacy policy for details.
Free users get 3 uses per tool per day and can upload files up to 200 MB. Pro subscribers get unlimited daily use and 4 GB uploads. View Pro plans for pricing.
Large files, password-protected PDFs, and corrupted documents can cause failures. Try: (1) removing the password first with Unlock PDF, (2) compressing before converting, (3) upgrading to Pro for larger files. If the error persists, contact us with the tool name, file size, and error message.
Use the Merge PDF tool. Drag files to reorder them before merging. For step-by-step instructions, see the merge guide.
Yes. Use Password Protect PDF to add encryption, or Add Watermark for text/image overlays. Our Secure PDF workflow hub covers the full sharing checklist.
Use the Invoice Generator for GST-compliant invoices, or the Payslip Generator for salary slips. Guides: Invoice guide and Salary slip format (India).
Sign in to your account and visit Plans. For billing issues, email @SiteEntity.ContactEmail with your account email.
Every major tool has a dedicated guide at /guides plus video walkthroughs at /learn. Start with the Choose a PDF tool guide if you are unsure which tool to use.
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Still need help?
Use our contact form or email support@ratpdf.com. Include the tool name, browser, file size, and a description of the issue for faster support.