How to edit and modify PDF files
In today's digital office and learning world, PDF files are widely used because of their cross-platform and stable format features. However, how to edit and modify PDF files is still a pain point for many users. This article will combine the hot topics and hot content on the Internet in the past 10 days to provide you with a detailed PDF editing and modification guide.
1. Common needs for PDF editing

According to recent Internet search data, users’ needs for PDF editing mainly focus on the following aspects:
| Requirement type | Proportion | Popular search keywords |
|---|---|---|
| Text modification | 45% | PDF text editing, modifying PDF content |
| Page management | 30% | PDF merge, split, delete PDF pages |
| form filling | 15% | PDF form filling, electronic signature |
| format conversion | 10% | PDF to Word, PDF to picture |
2. Comparison of mainstream PDF editing tools
The following is a functional comparison of the five most popular PDF editing tools recently discussed by users:
| Tool name | Platform support | Core functions | Price | User ratings |
|---|---|---|---|---|
| Adobe Acrobat | Win/Mac/Web | All-round editing, OCR recognition | ¥179/month | 4.8/5 |
| WPS PDF | Win/Mac/Mobile | Basic editing, free to use | free | 4.5/5 |
| Foxit PhantomPDF | Win/Mac | Batch processing, secure encryption | ¥699/permanent | 4.6/5 |
| Smallpdf | Web/Mobile | Online conversion, simple editing | ¥108/year | 4.3/5 |
| PDFelement | All platforms | High cost performance and rich templates | ¥299/permanent | 4.7/5 |
3. Detailed step-by-step guide for PDF editing
1. Text content editing
Use professional tools such as Adobe Acrobat to edit text directly: open the file → select the "Edit PDF" tool → click on the text to be modified → enter new content → save the file.
2. Page management operations
Most tools support page adjustment: Select "Organize Pages" in the menu → drag and drop to adjust order/delete pages → you can add blank pages or insert pages from other files.
3. Form filling and signature
For PDF forms: Click on the form field to enter directly → Use the "Signature" function to create a digital signature → Adjust the signature position and size → Save and complete.
4. Free online editing plan
For light users, here are the free online tools that have been popular recently:
| Website name | Features | File size limit | Privacy protection |
|---|---|---|---|
| iLovePDF | Multi-format conversion | 50MB | Delete after 2 hours |
| PDFescape | form design | 10MB | Instant processing |
| Sejda | Real-time collaboration | 200 pages or 50MB | Delete after 3 hours |
5. Advanced skills for professional users
1.OCR text recognition: For scanned PDFs, use professional OCR tools such as ABBYY FineReader to convert editable text.
2.Batch processing: Multiple files can be edited at the same time through Adobe Action Wizard or Foxit's batch processing function.
3.Security settings: When editing sensitive documents, it is recommended to set password protection and restrict print/copy permissions.
6. Mobile editing plan
Recent data shows that the demand for mobile PDF editing is growing rapidly:
| App name | iOS rating | Android rating | Features |
|---|---|---|---|
| Adobe Scan | 4.9 | 4.7 | Scan + edit in one |
| Xodo | 4.7 | 4.6 | Powerful handwritten annotations |
| PDF Expert | 4.8 | 4.5 | Quick text editing |
Through the above systematic guide, I believe you have mastered various methods and tool selections for PDF editing and modification. According to your specific needs, choose the appropriate solution to easily cope with various PDF editing scenarios.
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