1. What is iTop PDF?
iTop PDF is a full-featured yet easy-to-use PDF tool, which helps view, edit, comment, convert, and protect your PDF documents. It is not only an ideal choice for you to create perfect PDF documents by editing content, adding text, images & many kinds of annotations, attaching links, manipulating pages, customizing your unique stamp or watermark, etc., but also a powerful converter to perform the conversion seamlessly between PDF and a wide range of file formats like Word, Image, Excel, PPT, Text, etc.
2.What are the differences between iTop PDF Free and VIP?
The picture below highlights the main differences between the two versions. 
3.I haven't received my purchased product / license / activation code yet, what should I do?
1) You don't need a license or activation code to activate iTop PDF VIP account.
2) If you already have an account, you can just log in with your iTop PDF account again to activate the VIP.
3) If you don’t have an account before placing the order, you will receive an email from noreply@itopvpn.com with your email address as the account and a temporary password (check both of your inbox and spam folder for the email), then please log in with the account and the temporary password. It’s recommended to change the temporary password immediately after you log in.
Or click here to view the detailed instructions on how to activate VIP account.
2) If you already have an account, you can just log in with your iTop PDF account again to activate the VIP.
3) If you don’t have an account before placing the order, you will receive an email from noreply@itopvpn.com with your email address as the account and a temporary password (check both of your inbox and spam folder for the email), then please log in with the account and the temporary password. It’s recommended to change the temporary password immediately after you log in.
Or click here to view the detailed instructions on how to activate VIP account.
4. Does iTop PDF account support multiple devices?
Yes. One iTop PDF account can be logged in on up to 3 devices at the same time.
5. What if I forgot the password of my iTop PDF account?
Please launch iTop PDF > click Log In at the top right corner > click Forgot password? > follow the on-screen prompts to reset your password. Or you can reset your password via https://www.itopvpn.com/reset-password
6. What file formats does iTop PDF support to convert?
iTop PDF enables you to convert PDF to/from Word, Image, Excel, PPT, Text, etc. in high quality. Common file formats are all supported: 'bmp'; 'dib'; 'jp2'; 'jpg'; 'jpeg'; 'jpe'; 'jfif'; 'gif'; 'tif'; 'tiff'; 'png'; 'doc'; 'docx'; 'xlsx'; 'pptx'; 'xml'; 'txt'; 'md'.
7. What factors can cause a converted file to be output with poor quality?
iTop PDF is capable of recognizing and converting all kinds of PDF files. The program can not only work perfectly with text-only PDF files but also work with image-based PDFs. The following factors may cause quality issues:
- It contains many complex elements such as pictures, graphs, etc.
- The original content in the PDF file is blurry.
- The text has the same background color as the PDF file.
8.Can I convert more than 1 PDF file at the same time?
Yes, in the iTop PDF Converter window, you can add more than 1 PDF file here and perform batch conversion. But Free version users can only convert 2 files per day. You can upgrade to VIP to get unlimited batch processing. Besides, you can Creat Shortcut on your desktop for quick access in future.
9.How to add attachments in PDF?
iTop PDF allows you to add attachments to PDF files in two methods:
1) After opening your PDF file with our program, click the Attachments panel on the left side, then click the Add Attachment icon to browse the file that you want to attach.
2) Add the attachment as a comment. Click the Comment tab > Attachment > click on the page where you want to add this comment > on the pop-up dialog, select a file to attach.
1) After opening your PDF file with our program, click the Attachments panel on the left side, then click the Add Attachment icon to browse the file that you want to attach.
2) Add the attachment as a comment. Click the Comment tab > Attachment > click on the page where you want to add this comment > on the pop-up dialog, select a file to attach.
10.Why do I have the iTop PDF watermarks added in my PDF file? How to remove them?
For Free version users, after you use these three features (Edit Content, Add Text & Add Image) in our program and save the file, it will be added a default “iTop PDF” watermark. If you want to remove the default watermark, you need to upgrade to VIP first.
11.When I open PDF files, it will open with iTop PDF by default. How do I change this?
This is because iTop PDF has already been set as the default program for PDF files on your computer.
If you want to change it, please right-click one PDF file > click Open with > Choose another app > select the app you want to use. And remember to tick the option Always use this app to open .pdf files at the bottom. After the setting is done, when you double-click the PDF files on your computer, they will be opened with this default program.
If you want to change it, please right-click one PDF file > click Open with > Choose another app > select the app you want to use. And remember to tick the option Always use this app to open .pdf files at the bottom. After the setting is done, when you double-click the PDF files on your computer, they will be opened with this default program.
12. What is PDF/A?
PDF/A is an ISO-standardized version of the Portable Document Format (PDF) specialized for use in archiving and long-term preservation of electronic documents. PDF/A differs from PDF by prohibiting features ill-suited to long-term archiving, such as font linking (as opposed to font embedding) and encryption. The ISO requirements for PDF/A file viewers include color management guidelines, support for embedded fonts, and a user interface for reading embedded annotations.
iTop PDF supports converting files to PDF/A files and there are many PDF/A types for your choice like PDF/A-1A, PDF/A-1B, PDF/A-2A, PDF/A-2B, PDF/A-2U, PDF/A-3A, PDF/A-3B, and PDF/A-3U.
iTop PDF supports converting files to PDF/A files and there are many PDF/A types for your choice like PDF/A-1A, PDF/A-1B, PDF/A-2A, PDF/A-2B, PDF/A-2U, PDF/A-3A, PDF/A-3B, and PDF/A-3U.
13. How to change the interface language of iTop PDF?
iTop PDF supports more than 30 languages. Just open iTop PDF > click the Menu icon at the top left corner > click Settings > switch to your desired language > click the OK button to make it take effect.
14. If I uninstall iTop PDF, will the files created by this program be removed?
No, the created files are already saved on your computer, thus they won't be removed with the uninstall process. But if you deleted those files manually, they cannot be restored.
15. What should I do when the file cannot be opened?
- Check if your file needs to enter a password to open it. If so, just enter the correct password first.
- Check if your file is damaged. If so, please load the normal file.
- If not the above reasons, please contact us and provide us with your file for further checkk.
