虽然很少见，但在尝试以PDF格式保存文件时， Adobe PDF文件中的^{(Adobe PDF)}PDF 文本^{(PDF text)}内容会消失。它主要出现在可填写的表格中，您输入的文本在您点击保存^(Save)按钮后立即消失。因此，如果您对此问题感到困扰，请尝试以下帖子中给出的建议。

编辑或保存文件时PDF^(PDF)文本消失

使用PDF^(PDF)文件的好处是它可以将高质量的文件压缩成相对较小的文件大小。这对于节省硬盘空间很有用，尤其是在您使用有限的存储资源时。但是，如果这些文件是使用Adob​​e InDesign^{(Adobe InDesign)}等应用程序从分层文档创建的，则它们可以包含分层内容。

因此，PDF文件的单个页面可以包含具有不同内容的不同图层。如果您尝试保存或打印包含分层内容的PDF ，则元素会从^(PDF)PDF中消失。因此，要修复它，请尝试合并^(Merging)或展平文件。由于将文件保存为平面副本将有助于保留PDF文件中的所有更改。但是，展平后不能对注释或表单数据进行任何更改

注意^(Note)：合并或拼合图层无法撤消。对于此过程，请使用PDF^(PDF)的副本。

通过使用展平，您只会得到一层，这被认为很容易处理。您可以通过两种方式拼合PDF ：

1]打印为PDF

打开所需的PDF文件，然后按Ctrl+P组合键以弹出打印^(Print)对话框。

出现该框时，选择“ Microsoft Print to PDF ”作为打印机。

确认后的操作将使用默认设置重新生成另一个版本的PDF文件，并将所有现有图层合并为一个图层。

或者，您可以单击PDF文件的“文件”菜单并选择“打印”。 此后^(Thereafter)，点击“打印”按钮，并选择“ PostScript (*.ps) 作为“保存类型^{(Save as type)}”以保存原始PDF文件的PostScript副本。

完成后，双击.ps文件将在Adob​​e Distiller中打开该文件，该文件将自动展平文件并将其转换为只有一层可见的PDF文件。^(PDF)

2]将PDF另存为优化的PDF

如果您使用的是Acrobat Reader的^{(Acrobat Reader)}Pro版本，如Acrobat Pro、  FoxIt等，您可以通过将PDF保存为优化的 PDF^{(Optimized PDF)}来拼合图层。

为此，请选择“文件”>“另存为”>“优化的 PDF^{(Optimized PDF)} ”。然后从打开的设置^(Settings)窗口中选择“透明度^{(Transparency)}”复选框并点击“保存^(Save)”按钮。

此后，在^(Hereafter)Windows 11/10中保存文件时，您不应看到PDF文本内容消失。

PDF text disappears when editing or saving file in Windows 11/10

Although rarе, when attempting to saνe a file in PDF format the PDF text content in an Adobe PDF file disappears. It occurs mostly in fillable forms where the text you enter disappears right after you hit that Save button. So, if you have been troubled by this issue, try the suggestions given below in the post.

PDF text disappears when editing or saving a file

The benefit of working with PDF files is that it can compress high-quality files to a relatively small file size. This is useful in saving hard drive space, particularly when you’re working with limited storage resources. However, these files can contain layered content if they are created from layered documents by using applications such as Adobe InDesign.

As a result, a single page of the PDF file can contain different layers with different content. If you try to save or print a PDF that contains layered content, elements disappear from the PDF. So, to fix it try Merging or Flattening the file. Since saving your file as a flattened copy will help keep all the changes in the PDF file. However, no changes can be made to annotations or form data after the flattening

Note: Merging or flattening layers can’t be undone. For this procedure, use a copy of your PDF.

By using flattening you get only one layer, which is considered easy to handle. You can flatten the PDF in two ways:

1] Print to PDF

Open the desired PDF file and press Ctrl+P in combination to bring up the Print dialog box.

When the box appears,  select ‘Microsoft Print to PDF‘ as the printer.

The action when confirmed will regenerate another version of PDF file with the default setting and merge all the existing layers into a single layer.

Alternatively, you can click on the ‘File’ menu of the PDF file and select ‘Print’. Thereafter, hit the ‘Print’ button ‘ and choose ‘PostScript (*.ps) as the ‘Save as type‘ to save a PostScript copy of the original PDF file.

When done, double-clicking the .ps file will open the file in Adobe Distiller that will automatically flatten the file and convert it to a PDF file with only one layer visible.

2] Save PDF as an Optimized PDF

If you are using the Pro version of Acrobat Reader like Acrobat Pro, FoxIt, etc., you can flatten layers by saving the PDF as an Optimized PDF.

To do so, choose ‘Files’ > ‘Save as’ > ‘Optimized PDF’. Then from the Settings window that opens select ‘Transparency’ checkbox and hit the ‘Save’ button.

Hereafter, you should not see PDF text content disappearing while saving a file in Windows 11/10.

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