When a PDF uses special fonts, English fonts, or fonts not installed on the system, sending it to clients, colleagues, or uploading it to platforms can lead to font substitution, layout changes, or even preview garbling. This article introduces how to use HeSoft Doc Batch Tool to batch set font embedding methods across multiple PDFs. It supports embedding all fonts or subsetting all fonts, making it suitable for unified processing of contracts, bids, drawing notes, reports, and other documents, reducing the repetitive operations of opening, checking, and re-saving PDFs one by one.
In daily office work, PDFs are often used to deliver contracts, bids, reports, manuals, papers, promotional materials, and other documents. Many people assume that PDFs are naturally suitable for distribution and that exporting to PDF will prevent any issues. However, in actual collaboration, a subtle problem frequently occurs: a file opens perfectly on one's own computer, but after sending it to someone else or uploading it to an online preview platform, the fonts are substituted, English text becomes bolder or thinner, line spacing changes, and even garbled characters appear. One reason for this is that the fonts used in the PDF are not embedded, and the recipient's device does not have the corresponding fonts installed.
If you only have one PDF, you can check font information one by one using professional PDF software; but if a project directory contains dozens or hundreds of PDFs, opening the properties for each one to check fonts and reprocess them would be an enormous workload. The problem this article aims to solve is this: using the "PDF Optimization and Compression" feature of the office software " HeSoft Doc Batch Tool " to batch-set the font embedding method for multiple PDFs, embedding or subsetting fonts into the PDF files to improve consistency during cross-device distribution and preview.
Applicable Scenarios: Which PDFs Need Batch Font Embedding
PDF font embedding is not only needed in the design industry. Font compatibility issues can arise whenever files are transferred across different computers, operating systems, and platforms. This is especially true for PDFs exported from Word, doc, docx, WPS documents, PPT, pptx, layout software, or business systems, which may contain Times New Roman, Fangsong, Heiti, SimSun, corporate custom fonts, symbol fonts, etc. If these fonts are not correctly embedded, they might be automatically substituted by the system when opened by others.
The following scenarios are particularly suitable for batch processing PDF fonts:
- Batch submission of bid documents and contracts: Multiple PDFs need to maintain consistent font, page number, and title formatting to avoid layout changes on the evaluator's or client's computer.
- Unified archiving of reports, papers, and courseware: After converting docx, doc, and pptx to PDF, it is necessary to ensure that the archived versions display correctly years later.
- External preview of design drafts and promotional materials: When brand fonts or special English fonts are used, they are easily substituted if the recipient does not have the fonts installed.
- Batch uploading to systems or network drive previews: Many online preview services rely on server-side font environments; PDFs without embedded fonts are more prone to display discrepancies.
- Batch repair of historical PDFs: When a batch of existing PDFs is found to have fonts not embedded, centralized processing is needed before republishing.
In these scenarios, the key to efficiency is not whether a single PDF can be processed, but whether a batch of files can be processed at once. The positioning of HeSoft Doc Batch Tool is precisely the batch processing of office files, making it suitable for delegating repetitive, mechanical, and error-prone file organizing tasks to a tool.
Preview of Effect: Fonts Not Embedded Before Processing, Showing Embedded Subset After
First, let's look at the file situation before processing. There are 5 PDFs in the sample folder, named 1.pdf, 2.pdf, 3.pdf, 4.pdf, and 5.pdf. In actual office work, such files might originate from the same project, the same batch of contracts, or the same group of reports.
Before processing, when you open the PDF's "Document Properties", switch to the "Fonts" tab, you can see the list of "Fonts Used in this Document". In the screenshot, font names include TimesNewRomanPS-ItalicMT, TimesNewRomanPSMT, etc., and the font type is TrueType, but there is no "Embedded" or "Embedded Subset" prompt after the font name. This indicates that the relevant fonts in this PDF were not written into the document in a way that can travel with the file. If the recipient's device lacks these fonts, substitution display might occur.
After processing is complete, check the PDF's "Document Properties" - "Fonts" page again. This time, you can see "(Embedded Subset)" appearing after the font name. For example, fonts like TimesNewRomanPS-BoldItalicMT, TimesNewRomanPS-BoldMT, TimesNewRomanPS-ItalicMT, and TimesNewRomanPSMT all show as Embedded Subset, with the type displayed as TrueType (CID) and encoding as Identity-H. This result indicates that the file now contains the font character information actually used by the current document, making it more suitable for external distribution, archiving, and cross-platform preview.
It's important to note here that "Subset all fonts" and "Embed all fonts" are not the same concept. Subset embedding usually only includes the characters actually used in the document, making the file size more manageable; embedding all fonts is more complete but may increase the PDF file size. In the screenshot example, "Subset all fonts" was chosen, which is why the properties show "(Embedded Subset)" after processing.
Operating Steps: Using HeSoft Doc Batch Tool to Batch Process PDF Fonts
Step 1: Enter PDF Tools, select "PDF Optimization and Compression"
Open HeSoft Doc Batch Tool , and select "PDF Tools" from the function categories on the left. The main interface will list many PDF-related functions, such as Page Conversion, Delete Blank Pages, PDF to Word, PDF to Excel, etc. According to the screenshot, the function needed this time is item 25, "PDF Optimization and Compression", with the description "Batch optimize and compress PDF files, reducing file size".
The purpose of selecting this function is to enter a workflow that can batch-process PDF resources. In this topic, we are not focusing on image compression; rather, we are using the "Font embedding method" option within this function to uniformly process the fonts of a batch of PDFs. For users who frequently handle office files like PDFs, Word documents, Excel sheets, and PowerPoint presentations, incorporating font embedding and file optimization into a batch tool can avoid the inefficient process of opening, resaving, and checking files one by one.
Step 2: Add the PDF files to be processed
After entering "PDF Optimization and Compression", the top of the interface displays the workflow steps: Select records to be processed, Set processing options, Set save location, Start processing. The first step is to add the PDFs to be processed into the list. In the screenshot, buttons like "Add Files", "Import files from folder", "Clear", and "More" are visible. Users can choose the adding method based on the number of files: if there are only a few files, click "Add Files"; if a folder already contains many PDFs, using "Import files from folder" will be more efficient.
In the example, 5 PDFs have been imported, and the list displays file name, path, extension, creation time, modification time, and other information by serial number, with file paths from D:\test\1.pdf to D:\test\5.pdf. The bottom summary shows "Record count: 5", indicating that all 5 files are in the queue for processing. At this point, it is recommended to confirm that all files in the list are the ones needing processing, to avoid processing unmodified files together. If incorrectly added files are found, they can be removed using the delete operation on the corresponding row, or you can use "Clear" to reselect.
Step 3: Set the font embedding method
After confirming the file list, click "Next" at the bottom to enter "Set processing options". Here you can see several configurable areas, including "Image Quality (1-100)", "Image Maximum Resolution (PPI)", and the asterisked "Font embedding method". The core objective this time is to set the "Font embedding method".
In the screenshot, the "Font embedding method" switch is turned on, with two options provided below: "Embed all fonts" and "Subset all fonts". The example chose "Subset all fonts". By selecting this option, the software will, during the batch processing of PDFs, write the font characters actually used by each PDF into the file as subsets. This can enhance cross-device display stability while controlling file size as much as possible, making it suitable for most external sending, online preview, and archiving submission scenarios.
If your files have higher requirements for font integrity and you are less concerned about file size, you can choose "Embed all fonts" according to actual needs. However, from the perspective of common office distribution, subsetting fonts usually resolves the issue of "display anomalies because others' computers don't have the font". After making the selection, continue by clicking "Next" and follow the on-screen workflow to proceed to the save location settings.
Step 4: Set the save location and start processing
The workflow bar in the screenshot shows the third step as "Set save location" and the fourth step as "Start processing". Although subsequent screenshots are not shown here, it is reasonable to infer from the interface workflow: after completing the processing option settings, you need to continue setting the save location for the output files, and then start the batch processing. It is recommended not to overwrite the original files directly, especially for important materials like contracts, bids, and archived documents. A safer practice is to save the processed PDFs to a new folder, such as "Embedded Fonts", "Distributable Version", or "Submission Version", to easily distinguish them from the original files.
After starting processing, the software will process the PDFs one by one according to the list. Compared to manual operation, the advantage of the batch workflow is: you only need to add files once, uniformly select the font embedding method, and set the save location, leaving the repetitive processing to the tool. For 5 files, this might save only a few minutes, but for 50 or 200 PDFs, the time saved and the reduction in error rate would be very significant.
How to Verify After Processing: Check the Font Status in PDF Document Properties
After batch processing is complete, it is recommended to spot-check 1 or 2 output PDFs. Open the file properties and switch to the "Fonts" tab to see if "(Embedded)" or "(Embedded Subset)" appears after the font names. In the example of this article, the font list after processing shows "(Embedded Subset)", indicating that the "Subset all fonts" setting has taken effect.
When verifying, focus can be placed on the following points:
- Whether fonts that previously showed no embedding status now display "(Embedded Subset)" after processing.
- Whether the file's page display is consistent with before processing, especially for titles, page numbers, English text, special symbols, etc.
- Whether the file size is within an acceptable range. Font embedding might increase size, but subsetting usually saves more space than full embedding.
- If intended for platform uploading, preview it once through the target platform to confirm there are no significant changes in online display.
Common Questions and Precautions
1. Why do fonts need to be embedded if the PDF can already be opened?
Being able to open it does not guarantee consistent display on all devices. The fonts might be installed on your computer, so you see no problem; when the recipient's computer or server lacks these fonts, other fonts will be substituted. The purpose of embedding fonts is to let the PDF carry the font information required for display, reducing layout problems caused by differences in external environments.
2. How to choose between "Embed all fonts" and "Subset all fonts"?
If pursuing smaller file size and stable preview, usually choose "Subset all fonts". It only embeds the characters actually used in the document, suitable for submission, sending, preview, and archiving. If you need to perform complex editing on the PDF later, or if special specifications require complete font embedding, you might consider "Embed all fonts". However, full embedding can increase file size.
3. Will batch processing change the PDF content?
Based on the functions shown in the screenshots this time, the processing focus is on PDF optimization/compression and font embedding method settings. Under normal circumstances, the goal of font embedding is to maintain display consistency, not to modify the body content. However, for any batch processing, it's advisable to keep the original files, output to a new directory, and spot-check page effects after processing.
4. If there are images in the file, is it necessary to adjust the image quality?
The goal of this example is font embedding, so one can focus only on the "Font embedding method". The interface also has options like "Image Quality (1~100)" and "Image Maximum Resolution (PPI)". If you also wish to compress scanned documents or image-heavy PDFs, you can set these according to your actual needs. But if the aim is solely to avoid font issues, it's not recommended to arbitrarily lower image quality to avoid affecting clarity.
5. Which files are suitable for converting to PDF first, then embedding fonts?
Word documents (doc, docx), PowerPoint presentations (ppt, pptx), Excel spreadsheets (xls, xlsx), and WPS documents can all involve font compatibility issues when exported as PDFs. Especially for the official delivery version, it is recommended to check the font status after converting to PDF, and perform batch embedding or subsetting of fonts when necessary.
Summary: Enhancing PDF Distribution Stability with Batch Tools
The value of PDF lies in its stable delivery, but the prerequisite is that the file itself contains sufficient display information. When fonts are not embedded, files may display differently on different computers, operating systems, and online preview platforms. By using the "PDF Optimization and Compression" feature of HeSoft Doc Batch Tool , you can import multiple PDFs at once and choose "Embed all fonts" or "Subset all fonts" in the "Font embedding method", making the processed PDFs more suitable for distribution, preview, and archiving.
If you are organizing a batch of contracts, bids, reports, or PDFs converted from Word, docx, PPT, it is recommended to spot-check the font properties first. If fonts are found not to be embedded, you can follow the steps in this article for batch processing. This not only reduces the repetitive labor of handling files individually but also lowers the risk of rework due to font-related issues after files are sent out.