PDFs are everywhere — contracts, brochures, reports, menus. But editing them can be a nightmare. From locked documents to font substitution issues, here are the most common PDF editing challenges and practical solutions.
1. Can't Edit a Locked PDF
Many PDFs are password-protected or have editing restrictions. If you have the password, use it to unlock the file. If not, import the PDF into Desygner — it converts the PDF to editable layers so you can modify text, images, and layout without needing the original password.
2. Fonts Don't Match After Editing
Font substitution occurs when the original font isn't installed on your computer. This can change text spacing, line breaks, and visual appearance. Desygner handles fonts in the cloud, so you always have access to the correct font families.
3. Merging Multiple PDFs
Combining several PDF files into one is a common task. Desygner's multi-page document feature lets you import multiple files and arrange pages in any order before exporting as a single unified PDF.
4. Filling Out PDF Forms
Interactive form fields don't always work in all PDF viewers. For non-interactive PDFs, import them into Desygner, add text boxes over the form fields, fill them in, and export — giving you a clean, completed document.
5. Image Quality Issues
- Always export at 300 DPI for print
- Use high-resolution source images (at least 2x the display size)
- Avoid upscaling low-resolution images — replace them with higher-quality versions
- Use CMYK color mode for professional printing
- Enable 'print-ready' export settings in Desygner
6. Large File Sizes
High-resolution PDFs can be too large to email. Desygner offers a 'web-optimized' export option that compresses images while maintaining visual quality — ideal for digital distribution.