增加边距 PDF 在 n8n

增加边距 PDF 是一个 PDF4me 节点操作 n8n 为图形添加左边、右边、上边距和下边距 PDF每个尺寸均以毫米为单位。可利用此功能为打印报告创建装订空间，为讲义留出注释空间，或自动将收到的文件调整为符合房屋布局标准。

此节点的功能

PDF4me添加边距 PDF 需要 PDF 来自二进制数据， Base64 String或者 URL 并返回一个新文件，其中应用了您指定的四个边距值（单位为毫米）。每一边都是独立设置的，因此非对称装订边距只是左侧边距值更大而已。由于它是作为工作流程步骤运行的，因此无需任何人打开桌面编辑器，即可将相同的边距标准应用于所有传入的文档。

验证您的身份 API 要求

每一个 PDF4me 节点 n8n 需要有效 用于连接的凭证创建或选择一个可以容纳您的 PDF4me API 关键在于确保工作流程能够安全地验证保证金请求。

Get your API Key

您不容错过的重要事实

所有数值均以毫米为单位。

字段单位直接标注为 (毫米)。如果您的打印规格单位是英寸，请在输入前进行转换：1 英寸等于 25.4 毫米。

四方均独立

左、右、上、下是不同的字段，因此不对称装订边距只需要更大的左边数值即可。

印刷前先校对一份文件

结果的外观取决于源页面的几何形状，因此请先运行一个代表性文档并检查输出，然后再将一批文档发送到打印机。

n8n 中的 PDF4me 节点设置为“操作：向 PDF 添加边距”，输入数据类型：二进制数据，输入二进制字段：数据，输出文件名：document_with_margins.pdf，文档名称：document.pdf，以及以毫米为单位的左、右、上、下边距字段。 — PDF4me 添加边距 PDF 参数面板 n8n

自动保证金（n8n) 与桌面 PDF 编辑

搜索结果大多是每次只能处理一个文件的编辑器。区别在于实际工作发生的地方。

方法	扳机	最佳匹配
Desktop editor or online margin tool	A person opens and adjusts one file by hand	A single document you are already working on
PDF4me Add Margin To PDF in n8n	A generated report, an upload, or a scheduled batch	Applying one house margin standard to every document that arrives, unattended

添加边距的参数有哪些？ PDF 需要？

必需的： 操作、输入数据类型、与该输入类型匹配的字段、输出文件名、文档名称以及所有四个边距值。二进制数据输出名称和自定义配置文件具有可用的默认值。

范围	必需的	它的作用	例子
Action	Required	Selects the PDF4me node action to run. Choose Add Margin To PDF.	`Add Margin To PDF`
Input Data Type	Required	Format of the source PDF input. Choose Binary Data (from a previous node), Base64 String, or URL.	`Binary Data`
Input Binary Field	Conditional	Name of the binary property on the incoming n8n item that holds the PDF. Required when Input Data Type is Binary Data. Defaults to data.	`data`
Base64 Document Content	Conditional	Base64-encoded content of the source PDF. Required when Input Data Type is Base64 String.	`JVBERi0xLjQK...`
File URL	Conditional	Publicly reachable HTTPS URL to the source PDF. Required when Input Data Type is URL.	`https://example.com/report.pdf`
Output File Name	Required	Filename for the PDF returned with margins applied. Include the .pdf extension.	`document_with_margins.pdf`
Document Name	Required	Filename of the source PDF, used for reference and tracking on the request.	`document.pdf`
Left Margin (Mm)	Required	Left margin width in millimetres. Set this larger than the other sides when you need binding space.	`20`
Right Margin (Mm)	Required	Right margin width in millimetres.	`20`
Top Margin (Mm)	Required	Top margin height in millimetres. Increase it when a printed header or letterhead needs clearance.	`25`
Bottom Margin (Mm)	Required	Bottom margin height in millimetres. Increase it when a footer or page number needs clearance.	`25`
Binary Data Output Name	Optional	Name of the binary property the output item exposes. Defaults to data.	`data`
Custom Profiles	Optional	Advanced Options field for extra processing settings, supplied in a JSON-like format. Leave blank unless you have a specific profile to apply.	`{ "preserveContentQuality": true }`

输出字段

一次成功的运行返回一个 n8n 携带物品 PDF 已添加边距。

场地	类型	它包含什么
`Binary (data)`	Binary	The PDF with the four margin values applied, under Binary Data Output Name (default data).
`fileName`	String	Generated filename, matching Output File Name.
`mimeType`	String	MIME type of the output, always application/pdf.
`fileSize`	Number	Size of the returned PDF in bytes.
`pageCount`	Number	Number of pages processed with margin adjustments.
`success`	Boolean	True when the margin operation completed, false on failure. Use it to branch error handling.
`message`	String	Human-readable status message, carrying success confirmation or error detail.

如何设置添加边距 PDF 在 n8n？

添加 PDF4me 致你 n8n 工作流程并选择 添加边距 PDF 行动。
在 用于连接的凭证请选择您的 PDF4me 凭证或点击 创建新凭证 并粘贴你的 API 钥匙。
放 输入数据类型 到 二进制数据 （默认）， Base64 String，或者 URL 并提供匹配的来源 PDF 场地。
进入 左边距（毫米）， 右边距（毫米）， 上边距（毫米），和 底部边距（毫米） 单位为毫米。
放 输出文件名 （必须以……结尾） .pdf）和 文档名称 针对源文件。
执行节点并路由返回结果 PDF 进入下一步，例如存储、电子邮件或打印队列。

典型配置

工作流程示例Common n8n workflow patterns using Add Margin to PDF.

打印报告的装订边距

系统会生成一份预定的报告。 PDF 过夜。
增加边距 PDF 应用较宽的左边距和较窄的右边距、上边距和下边距。
打印结果将进入打印队列，并预留螺旋装订或梳式装订的空间。

讲义上的注释空间

培训资料已上传至共享文件夹。
增加边距 PDF 加宽右侧页边距，以便读者有空间做笔记。
带注释的副本将分发给与会者。

房屋布局标准文件

webhook 接收 PDFs 来自外部供应商，布局不一致。
增加边距 PDF 对每个文件应用相同的四个值。
文件以统一的页面格式进入档案馆。

页边距和页码

合并文档是由多个来源汇编而成。
增加边距 PDF 首先形成底部间隙。
添加页面 Number 到 PDF 然后将编号放置在新的页脚空间内。

实用技巧

Convert inches before you type

The fields only accept millimetres. A one inch margin is 25.4 and a half inch is 12.7, so convert a print spec once and reuse the numbers.

Add margin before adding page numbers

Creating the bottom clearance first gives a page number or footer stamp somewhere clean to sit, rather than crowding existing content.

Proof a representative file, not the simplest one

Pick a document with dense edge-to-edge content for the test run, since that is where a margin change is most visible.

Use an asymmetric left value for binding

Anything that will be bound, punched, or stapled needs more room on the binding edge than on the outer edge.

Split first if pages need different margins

The values apply across the document, so a mixed layout needs a split, per-part margin run, and merge back together.

Branch on the success field

Test the returned success boolean before sending the file onward so a failed run raises an alert instead of quietly forwarding the original.

速查表

场地	价值
Action	`Add Margin To PDF`
Input Data Type	`Binary Data`
Input Binary Field	`data`
Output File Name	`document_with_margins.pdf`
Document Name	`document.pdf`
Left / Right Margin (Mm)	`20 / 20`
Top / Bottom Margin (Mm)	`25 / 25`
Binary Data Output Name	`data`
Credentials	`PDF4me API credential`

常见问题

What unit are the PDF margin values in?+

All four margin fields are measured in millimetres, which is why they are labelled Left Margin (Mm), Right Margin (Mm), Top Margin (Mm), and Bottom Margin (Mm). If your source specification is in inches, convert first: one inch is 25.4 mm, so a one inch margin is entered as 25.4.

Does adding a margin shrink the page content or make the page bigger?+

Adding margin space changes the relationship between the content area and the page edge, which in PDF terms means the boundaries described in the ISO 32000 PDF specification. Run the node once on a representative file and inspect the output before committing a print run, because the visual result depends on the source page geometry.

Can I set a different margin on only one side?+

Yes. The four margin fields are independent, so you can set a wide binding margin on the left and leave the other three small. A common binding setup is a larger left value with matching smaller right, top, and bottom values.

Do the margins apply to every page in the document?+

The margin values you supply are applied across the document rather than to a single selected page. If different pages need different treatment, split the PDF first, run Add Margin to PDF on each part with its own settings, then merge the results back together.

Why would I automate margins instead of setting them in Acrobat?+

A desktop tool is fine for one file you already have open. Automation matters when margins must be applied consistently to every document that arrives, for example every report generated overnight or every file dropped into a print folder. In an n8n workflow that becomes a single step nobody has to remember.